Resources

Laura Kalbag

Get sure footing on the path to designing with accessibility.

Aaron Gustafson

Building an elegant, functional website requires more than just knowing how to code. In Adaptive Web Design, Second Edition, you’ll learn how to use progressive enhancement to build websites that won’t break, work anywhere, are accessible by anyone—on any device, and are designed to work well into the future.

Ashley Shew

A manifesto exploding what we think we know about disability, and arguing that disabled people are the real experts when it comes to technology and disability.

Dylan Barrell

Free ebook: A Practical Guide to Accessible Software Development at Scale.

Martine Dowden and Michael Dowden

Understand the realities of modern web accessibility and what considerations should be made to include everyone. This book makes the topic of web accessibility as approachable as possible to help every web professional become an accessibility advocate at their companies, on their projects, and in their communities.

Heydon Pickering

Web accessibility is quite a large topic — far too large to fit into a small book. So, what will this book cover? Though we shall encounter visual design challenges, deal with performance issues, and adopt progressive enhancement — all of which are accessibility concerns — the underlying theme of this book is about making the interactivity of web applications include keyboard and screen reader users.

Jan Jaap de Groot and Paul van Workum

The Appt Foundation is working towards a world where everyone can use apps equally. To make this vision a reality, we have written a handbook. It helps you learn the basics of app accessibility in a straightforward way.

Virginia Eubanks

In Automating Inequality, Virginia Eubanks systematically investigates the impacts of data mining, policy algorithms, and predictive risk models on poor and working-class people in America.

Sukriti Chadha

Take a deep look at accessibility as it applies to mobile and wearables. This book covers topics within the accessibility domain that are rarely covered or understood, despite the fact that nearly half of the world’s population uses smartphones.

Elizabeth DePoy, Stephen Gilson

Given their potential to divide humans into categories and label their worth and value, design and branding can wield immense but currently unharnessed powers of social change. Groups designed as devalued can be undesigned, redesigned and rebranded to seamlessly and equivalently participate in community, work and civic life.

Aimi Hamraie

Building Access investigates twentieth-century strategies for designing the world with disability in mind.

Geri Coady

Make sure accessibility and aesthetics go hand-in-hand with every design.

Robert McRuer

A bold and contemporary discourse of the intersection of disability studies and queer studies.

Senongo Akpem

Explore how to create culturally relevant and responsible experiences that reach a truly global audience.

Change is never easy, but in this case, it’s crucial. Whether you are an employee, manager, HR/DEI leader, or company owner, this guide provides practical and achievable steps to ensure everybody can fulfill their role to the best of their abilities while feeling respected.

Stephanie Warlick

Emily Ladau

An approachable guide to being a thoughtful, informed ally to disabled people, with actionable steps for what to say and do (and what not to do) and how you can help make the world a more inclusive place.

David Dylan Thomas

In Design for Cognitive Bias, David Dylan Thomas lays bare the irrational forces that shape our everyday decisions and, inevitably, inform the experiences we craft. Once we grasp the logic powering these forces, we stand a fighting chance of confronting them, tempering them, and even harnessing them for good.

Graham Pullin

How design for disabled people and mainstream design could inspire, provoke, and radically change each other.

Eric Meyer, Sara Wachter-Boettcher

You can’t know every user, but you can develop inclusive practices to create experiences that support a wider range of people, more of the time.

Kristina Höök

Interaction design that entails a qualitative shift from a symbolic, language-oriented stance to an experiential stance that encompasses the entire design and use cycle.

Todd Parker, Scott Jehl, Maggie Costello Wachs, and Patty Toland

Progressive enhancement is an approach to web development that aims to deliver the best possible experience to the widest possible audience, and simplifies coding and testing as well. Whether users are viewing your sites on an iPhone, the latest and greatest high-end system, or even hearing them on a screen-reader, their experience should be easy to understand and use, and as fully-featured and functional as possible.

Jeffrey Zeldman

Designing with Web Standards remains your essential guide to creating sites that load faster, reach more users, and cost less to design and maintain.

Keith Heggart et al

The development and implementation of inclusive and diverse learning experiences is a vital consideration for educators in higher education. Increasingly, learning designers play a significant role in this process. This textbook offers postgraduate students a comprehensive guide to designing learning experiences that are accessible, equitable, and inclusive.

Alice Wong

Activist Alice Wong brings together this urgent, galvanizing collection of contemporary essays by disabled people.

Sheri Byrne-Haber, CPACC.

A candid and practical handbook for designers.

Vimal Gupta

A guide to navigating the crucial field of accessibility design with precision and clarity. This comprehensive dictionary comprises over 700 meticulously defined terms, offering a vital resource for designers, developers, policymakers, and anyone dedicated to creating inclusive digital experiences.

Stefanie K. Johnson

How do we find that happy medium where workers can demonstrate their individuality while also feeling they belong?

Regine Gilbert

What is inclusive design? It is simple. It means that your product has been created with the intention of being accessible to as many different users as possible.

Jonathan Hassell

In this book, award-winning international accessibility thought-leader Jonathan Hassell shows you how to transform your organisation to consistently and cost-efficiently create websites, mobile apps and other digital products that are usable for all of your customers.

Jennifer Brown

The Inclusion Dividend provides a framework to tap the bottom line impact that results from an inclusive culture.

Mason Donovan, Mark Kaplan

The Inclusion Dividend provides a framework to tap the bottom line impact that results from an inclusive culture.

Mary-Frances Winters

Effective dialogue across different dimensions of diversity, such as race, gender, age, religion, or sexual orientation, fosters a sense of belonging and inclusion, which in turn leads to greater productivity, performance, and innovation.

Heydon Pickering

Inclusive Design Handbook gets to the bottom of it all: accessibility myths and rules of thumbs, WAI-ARIA roles, content accessibility guidelines, landmark roles, keyboard and touch accessibility, accessible markup and interaction patterns, accessible forms and widgets, multimedia accessibility and inclusive prototyping.

Jorge Arango

Websites and apps are places where critical parts of our lives happen. We shop, bank, learn, gossip, and select our leaders there. But many of these places weren’t intended to support these activities. Instead, they’re designed to capture your attention and sell it to the highest bidder.

Bess Williamson, Elizabeth Guffey

Making Disability Modern: Design Histories brings together leading scholars from a range of disciplinary and national perspectives to examine how designed objects and spaces contributes to the meanings of ability and disability from the late 18th century to the present day, and in homes, offices, and schools to realms of national and international politics.

Kat Holmes

How inclusive methods can build elegant design solutions that work for all.

Sarah F. Rose

During the late nineteenth and early twentieth centuries, Americans with all sorts of disabilities came to be labeled as “unproductive citizens.” Before that, disabled people had contributed as they were able in homes, on farms, and in the wage labor market, reflecting the fact that Americans had long viewed productivity as a spectrum that varied by age, gender, and ability.

Ashley Firth

This book will guide you through a broad range of access needs, the barriers users often face, and provide practical advice on how your sites can help rather than hinder. Going beyond advice tailored solely for developers, this book offers potential improvements for designers, developers, user experience professionals, QA and testers, so that everyone involved in building a website can benefit.

Joshue O Connor

Pro HTML5 Accessibility helps designers come to grips with building exciting, accessible and usable web sites and applications with HTML5. The book covers how to use HTML5 in order to serve the needs of people with disabilities and older persons using assistive technology (AT).

Svetlana Kouznetsova

Do you have a podcast, video series, or an upcoming live event? Do you want to increase your audience tenfold? We have the solution, and it’s captioning. In her book, Sound Is Not Enough: Captioning as Universal Design, Svetlana Kouznetsova will show you how to capture those new viewers and take your audience to a whole new, and diverse level.

Sara Wachter-Boettcher

In Technically Wrong, Sara Wachter-Boettcher demystifies the tech industry, leaving those of us on the other side of the screen better prepared to make informed choices about the services we use—and to demand more from the companies behind them.

David Gordon

A practical, research-based framework that enables all educators to respond to individual learning differences through the design of inclusive goals, methods, materials, assessments, and environments.

Stacey Swinehart Ganderson

This accessibility reference manual is geared toward designers working on digital products.

Eswaran Subrahmanian, Yoram Reich, Sruthi Krishnan

A call to reclaim and rethink the field of designing as a liberal art where diverse voices come together to shape the material world.

Jason C. Taylor

Your Roadmap to Digital Inclusion is made up of four instructive chapters, focused on the resource considerations for each stage of a typical digital accessibility program and how to integrate the disability community across your program.

Manuel Matuzovic

The Web Accessibility Cookbook provides you with dozens of recipes to help you avoid creating accessibility failures. You'll learn how to build common components, such as main navigation, filters, and dialogs, in an accessible manner. Each recipe not only explains how to build things but also why.

Narayanan Palani

By applying the accessibility best practices covered in this book, developers can help their organizations rise to a whole new level of accessibility adherence, innovation, and inclusive design. They will also see greater work satisfaction in their professional lives and a way to help improve digital accessibility for end users.

Jim Thatcher and Mark Urban

The power of the Web lies in the fact that anyone and everyone can access it, and this should also extend to users with disabilities. Accessibility is about making websites accessible to those with aural, visual, or physical disabilities, or rather, constructing websites that don't exclude these people from accessing the content or services provided.

Sarah Horton and Whitney Quesenbery

If you are in charge of the user experience, development, or strategy for a web site, A Web for Everyone will help you make your site accessible without sacrificing design or innovation. Rooted in universal design principles, this book provides solutions: practical advice and examples of how to create sites that everyone can use.

Sara Hendren

A fascinating and provocative new way of looking at the things we use and the spaces we inhabit, and a call to imagine a better-designed world for us all.

Sarah Horton and David Sloan

What Every Engineer Should Know About Digital Accessibility will prepare readers to integrate digital accessibility into their engineering practices. Readers will learn how to accurately frame accessibility as an engineering challenge so they are able to address the correct problems in the correct way.

Verizon

For people living with disabilities, accessibility doesn’t just mean how reachable something is — oftentimes, the level of accessibility can define their ability to interact with and participate in certain activities or events, including entertainment.

Microsoft Xbox

An introductory course to accessibility in gaming and how to create inclusive gaming experiences.

A centralized resource for game accessibility reviews and information.

AbleGamers

A resource for accessible player experiences and connecting with gamers with disabilities.

Robin Kanatzar

News from the accessibility community, links to developer tools and frameworks, and more.

David A. Kennedy

A weekly dose of web accessibility to help you bring it into your everyday work. Delivered to your inbox each Monday.

Axess Lab

Get notified when we write new stuff

Kevin Gotkin

Disability Thinking Weekday is an email newsletter for disabled people and others interested in disability issues, ideas, and culture.

Andrew Pulrang

A weekly roundup about disability arts and politics.

Equal Entry

Get free tips to grow your accessibility knowledge delivered right to the comfort of your own inbox.

Microassist

Stay up to date on learning and development, training opportunities, and accessibility news.

Huxley Digital

Your online accessibility magazine.

t12t

The goal is to spread news, articles and tips regarding web accessibility. This will be more than a bunch of links in an email, there will be opinions.

Laura L. Carlson

The Web Design Update is a plain text email digest dedicated to disseminating news and information about web design and development with emphasis on elements of user experience, accessibility, web standards and more.

Grunet

It's like those “Word of the Day” email services, but for the Web Content Accessibility Guidelines (WCAG) instead. Each day it sends out a short summary of a different success criterion.

WebAIM

The WebAIM newsletter is for people that are interested in receiving monthly news and updates on web accessibility issues. The newsletter will include featured articles, monthly tips, resources, and questions from WebAIM's discussion forum.

Be My Eyes

The accessibility podcast.

The Frontside Podcast

Marcy Sutton is going to be talking with us a little bit about accessibility, both in the large and the small.

Nicolas Steenhout

Conversations around web accessibility.

Nicolas Steenhout

Short discussions with disabled people about the barriers they encounter on the web.

Front End Happy Hour

In this episode, we have a special guest joining us to talk about digital accessibility, Jennison Asuncion who is a leader in the accessibility community and has a lot of information to help us improve our websites and applications be more accessible for all users.

Eat Sleep Code

On this episode of Eat Sleep Code, guest Elle Waters explains why accessibility is important in software development and what a developer’s responsibilities are when creating a product.

ShopTalk

We're chatting with Heydon Pickering about accessibility, using pre-built solutions past their best before date, everyone's varying degrees of proficiency, and whether accessibility is becoming second nature to more people.

ShopTalk

We're talking accessibility with Christopher and Nicolas from Knowbility. Does accessibility transcend the web? Is it discouraging how much work still needs to be done? How do we get people the skills needed to help with accessibility on the web? Should accessibility be a role in house? And is Javascript the enemy of accessibility?

The Big Web Show

Why do companies de-prioritize accessibility? Making a digital map accessible to the blind. Pros and cons of the straw test. Why simulating a disability is not the same as working with disabled people.

Steven Aquino and Timothy Buck

Accessible is a fortnightly—episodes are released twice per month—podcast about accessibility in tech. Topics covered on the show are mostly Apple-centric but will span the tech industry at large where appropriate.

Ivonne Acevedo

Escucha la importancia del diseño universal en proyectos arquitectónicos.Aprende sobre conceptos básicos de la accesibilidad digitalVisualiza como tú puedes aportar mediante tus diseños la accesibilidad y diversidad que todos necesitamos.

Paula Goyanes

Escucha cómo crear diseños accesibles y cómo llevarlos a producción de una manera correcta. Aprende como el diseño y el development trabajan de la mano para crear experiencias accesibles.Conoce como hacer experiencias usables y accesibles incluso para motores de búsqueda y mejorar tu SEO.

Adriana Mattei Sosa

Aprende sobre la diversidad de diseños del bastón, herramienta para personas con impedimento visual. Comprende cómo los diseñadores podemos crear experiencias inclusivas y centradas en el diseño universal. Escucha como la disciplina del diseño resuelve problemas que son desapercibidos ante la falta de educación y empatía hacia la comunidad con discapacidad.

Chad Chelius and Dax Castro

Join Chad Chelius and Dax Castro (CHAX) as they chat about important document accessibility topics, trends and maybe even complain a little now and again.

React Podcast

This week, we talk accessibility pitfalls with Aaron Canon.

Matthew May

A show about inclusive design.

CodeNewbie

Stephanie Slattery explains the 5 categories of disabilities, shows us how to implement suggestions from the Web Content Accessibility Guidelines, and shares why she’s so passionate about accessibility.

Monique Mitchelson and Michelle Livock

A podcast for neurodivergent women, covering Autism to ADHD and everything in between. Monique and Michelle aim to educate and inspire women who think differently.

Presentable

This week on the show, we talk to Laura Kalbag about her new book, Accessibility for Everyone. We discuss how digital products have an increasing mandate to be broadly usable by everyone in society, and what we can do to achieve better accessibility in our designs.

Thisten

Thisten is an audio-to-text platform, where transcripts are created and aggregated from podcasts for people to search, reference and discover.

YouTube

The goal of A11ycasts is to teach developers how accessibility works all the way down at the platform level, while also demonstrating real world accessibility problems and solutions to fix them.

YouTube

YouTube livestreams about accessibility.

Vimeo

LDS Church (2007)

YouTube

React Boston 2019

YouTube

Google I/O (2016)

Vimeo

WDCNZ (2013)

Vimeo

WDCNZ (2013)

YouTube

Monthly online talks about accessibility.

YouTube

Google I/O (2013)

YouTube

Hear from people who are working to make the world an easier place for those with disabilities.

YouTube

Clarity (2019)

Vimeo

Paris Web (2013)

YouTube

If media and event producers want a larger audience, they need to consider making them accessible via high quality same language captions and transcripts. They are good for business and a necessity for millions of people. Auto captions are not the best accessibility practice, especially for professional content. You have the opportunity to learn firsthand from a deaf speaker in the 8-minute video that has English captions and subtitles in multiple languages.

Dr. Michele A. Williams

This brief introductory video geared towards technology professionals provides a baseline understanding of the topic of Web and digital accessibility: designing, coding, and testing with users with disabilities in mind, including the diverse assistive technology and tools they may be using to engage with their computing devices.

YouTube

Web Rebels (2017)

Vimeo

WDCNZ (2013)

YouTube

Chrome Dev Summit (2013)

YouTube

Progressive Web App Summit (2016)

YouTube

Generate Conference (2013)

Jared Smith

A bookmarklet to make it easier to test WCAG’s Target Size and proposed Pointer Target Spacing requirements.

Ian Lloyd

A random collection of accessibility-focused tools that you might find at least partially useful.

Hao Luo

A bookmarklet that simulates various types user experiences.

The United States Social Security Administration

The Accessible Name and Description Inspector accessibility testing tool.

Squiz

Check that your HTML code conforms to your coding standard.

Chris Johnson

Check how accessible your Twitter media posts are.

TPGi

The W3C Nu Markup Validator checks the markup validity of Web documents, but instead uses the backend from the Validator.nu engine.

Steve Faulkner

Quick and dirty testing of WCAG 2.1 Success Criterion 1.4.12 Text Spacing.

Khan Academy

An accessibility visualization toolkit.

WhatSock

Visual ARIA allows engineers, testers, educators, and students to physically observe ARIA usage within web technologies.

Microsoft

Solve accessibility issues before they reach your customers.

TPGi

ARC Toolkit is a professional-level accessibility testing tool that gives you the power to quickly and efficiently evaluate screens for accessibility and uncover issues related to the WCAG 2.1 Level A and AA guidelines.

Mateusz Zielinski

Easily spot missing ARIA labels, misused ARIA roles, and incomplete keyboard support in your web applications.

Deque

The world's leading digital accessibility toolkit - download as a browser extenion or on NPM. Chosen by Microsoft, Google, development and testing teams everywhere.

Deque

Automatically catch tons of accessibility bugs with axe. Catch even more with axe beta.

Google

The ChromeVox (Classic) screen reader is an extension to Chrome that brings the speed, versatility, and security of Chrome to visually impaired users.

BeeLine Reader

BeeLine Reader makes reading on-screen easier, faster, and more enjoyable. We use a simple cognitive trick — an eye-guiding color gradient — to pull your eyes through long blocks of text.

NC State IT Accessibility

Allows you to analyze text color contrast problems on a webpage according to the WCAG 2 text color contrast requirements.

Dark Reader Ltd.

This eye-care extension enables night mode by creating dark themes for websites on the fly. Dark Reader inverts bright colors, making them high contrast and easy to read at night.

Fixa11y

Automatically fixes contrast issue on websites to a specifix contrast ratio.

amkhrjee

Change fonts of any website with your locally installed fonts!

Rumoroso

The extension generates a documentmap or index of any web document structured with headings (you can access directly to the content by clicking on any of its items), and now, it shows the HTML 5 outline.

Matthew Tylee Atkinson

Allows you to navigate a web page via WAI-ARIA landmarks, using the keyboard or a pop-up menu.

Pavel Agarkov

Browser extension with custom color schemes for all websites.

Ugurcan (Ugi) Kutluoglu

NerdeRegion is a developer tools extension for debugging live regions on a Web Page. When activated, it lists all active Aria live regions, and keeps a record of all mutations that has happened on the region.

Eitan Isaacson

NoCoffee can be helpful for understanding the problems faced by people with slight to extreme vision problems.

Moritz Gießmann

Removes target='_blank' attributes from the websites you browse!

phpied.com

Some sites annoyingly open links in new tabs. This extension lets you take back control.

Nicholas Hoyt

Provides keyboard access to landmark regions and headings (h1–h6) on a web page.

Simon Miner

Sound Pointer enables you to locate and follow the mouse pointer around your browser window with a sound that changes as you move your mouse.

Peter Gould

taba11y calculates the tab order of all elements and displays it visually, either by drawing a path or by highlighting the elements.

zmrhal.j

This extension allows you to set custom values for the following text spacing properties: Line height, letter spacing, word spacing, and paragraph spacing.

WebAIM

WAVE is a web accessibility evaluation tool developed by WebAIM. It provides visual feedback about the accessibility of your web content by injecting icons and indicators into your page.

Metamatrix

The Web Disability Simulator lets you experience how people with different disabilities or inadequate abilities perceive a web site. Simulate color blindness, low vision, dyslexia and more.

Darek Kay

A CLI utility to calculate/verify accessible magic numbers for a color palette.

Atul Varma

An Elm-based prototype to help designers build accessible color palettes.

Brent Jackson

Color palette combination contrast tester

Donielle Berg and Adrian Rapp

Empowering designers with beautiful and accessible color palettes based on WCAG Guidelines of text and background contrast ratios.

Adam Morse

Colors.css - A nicer color palette for the web.

Nate Baldwin

A comprehensive guide for exploring and learning about the theory, science, and perception of color and contrast.

Josef Eines

This tool tests the contrast of a background color and foreground color for accessibility.

toptal

Use the Colorblind Colorlab to select safe colors earlier in the design process.

Lea Verou

Easily calculate color contrast ratios. Passing WCAG was never this easy!

Protean Studio

Test the contrast of two colors to ensure high readability using both the Advanced Perception of Color Algorithm (APCA) and the classic contrast ratio.

The Scenery

Hex Naw is a tool that helps designers and developers test entire color systems for contrast and accessibility. Plug in your palette or color system and let Hex Naw do the rest.

Super High Fives

An open-source colour picker app for macOS.

Tanaguru

Find good constrast for web accessibility between two colors.

Tom van Beveren and Kim van den Brink

Making the world a better place for the colorblind.

Corey Ginnivan

A tool that brings attention and understanding to how color contrast can affect different people with visual impairments.

Melanie Sumner

A more thorough way to track the potential accessibility violations and the automated linters and tests currently available.

Accessify

Run a free website performance test and get actionable tips on how to optimize it.

Sarah Higley

Find accessibility stats by github repository.

AccessLint

AccessLint is a GitHub App that finds accessibility issues in your pull requests.

The DAISY Consortium

Ace, the Accessibility Checker for EPUB, is a tool developed by the DAISY Consortium to assist with the evaluation of accessibility features of EPUB publications.

Rodney Rehm

A JavaScript library to help modern web applications with accessibility concerns by making accessibility simpler.

Paul J. Adam

a11yTools is a collection of HTML Web Accessibility Testing Tools in one location in an Extension for Safari used for quick and easy Accessibility testing.

Paul J. Adam

a11yTools is a collection of HTML Web Accessibility Testing Tools in one location on your iPhone and iPad for quick and easy Accessibility testing.

Level Access

AMP’s powerful testing engine and work flow, accessible development best practices and extensive training course library allow organizations to quickly and efficiently incorporate accessibility compliance into existing development processes.

TPGi

Automated testing that looks for machine-detectable accessibility defects within digital content.

Deque Labs

Accessibility engine for automated Web UI testing.

Michael Weber

Web Accessibility checker which evaluate some defined WCAG rules instantly during coding or on command.

silviasusai

Snippets that include all WAI-ARIA attributes and descriptions, for ease of use in building more accessible web content.

Be Inclusive

Be Inclusive is a web app that helps you define, track, and share web accessibility audits.

PayPal

Bootstrap Accessibility Plugin is an extension for the Bootstrap 3 web development framework that makes many of the components of this library accessible for keyboard and screen reader users.

A javascript library that makes it easy to generate interactive sonifications, so that you can make your charts, graphs, and other data visualizations accessible to screen reader users.

Craig Morten

Screen reader driver for test automation.

Pa11y

Pa11y is your automated accessibility testing pal.

Polypane

Polypane is a cross-platform desktop browser that comes with extensive accessibility tooling: an accessibility checker, 19 different visual impairment simulators, color contrast checking, heading, links and image checking, focus order visualisation, horizontal overflow detection and more, showing improvement suggestions where possible.

Toronto Metropolitan University

Sa11y is an accessibility quality assurance tool that visually highlights common accessibility and usability issues. Geared towards content authors, Sa11y indicates errors or warnings at the source with a simple tooltip on how to fix.

Indrek Paas

WAI-ARIA Roles, States and Properties auto-completion for Sublime Text.

Google

Android Accessibility Suite is a collection of accessibility services that help you use your Android device eyes-free or with a switch device.

Weston Thayer

Instantly test how accessible your experience is with the real assistive technologies your disabled users rely on — screen readers, magnifiers, and more — from any computer.

Freedom Scientific

JAWS is the world's most popular screen reader, developed for computer users whose vision loss prevents them from seeing screen content or navigating with a mouse.

NV Access

NonVisual Desktop Access (NVDA) is a free, open-source, portable screen reader for Microsoft Windows.

The GNOME Project

Orca is a free and open-source, flexible, extensible screen reader from the GNOME project for individuals who are blind or visually impaired.

Apple

VoiceOver is a gesture-based screen reader that lets you enjoy using iPhone even if you don’t see the screen.

Apple

VoiceOver gives you auditory descriptions of each onscreen element and provides helpful hints along the way.

Bernie Jenny

Color Oracle takes the guesswork out of designing for color blindness by showing you in real time what people with common color vision impairments will see.

Nothing Magical, Inc.

A macOS app for quick access to WCAG color contrast ratios

TPGi

The Colour Contrast Analyser (CCA) helps you determine the legibility of text and the contrast of visual elements, such as graphical controls and visual indicators.

Michel Fortin

Sim Daltonism lets you visualize colors as they are perceived with various types of color blindness.

Where programmers share ideas and help each other grow.

24 days of digital accessibility gifts during the season of giving and sharing.

Articles and news on web standards, accessibility, and usability.

Simple tips on making web content more accessible to all.

Accessibility Made Easy is a not-for-profit who’s aim is to create a more accessible world. We believe that every person, no matter the ability or environment, should be able to access the same information as everyone else.

Documenting everything through the journey of learning web accessibility.

Promoting a culture of inclusion through the research and application of web accessibility and standards.

Showcasing accessible user interfaces and tools.

Hi, I’m Alicia. I'm a diversity, equity and inclusion strategist, researcher, and culture consultant based in Toronto.

Find out what’s happening in the world of accessible design, Level Access’ team updates, and better practices for an accessible web.

Karl Groves' web accessibility blog

A blog trying to be a pattern library. All about designing inclusive web interfaces, piece by piece.

Stay up to date on all things accessibility

A blog by Robyn Hunt

A blog about accessibility written by the TPGi's employees.

A blog about accessibility written by WebAIM's employees.

Blog and podcast on web accessibility.

Questions and Answers by Accessify: Browse through our database of popular questions to find the best answers ever posted by other people.

Information on the web-a11y Slack group.

An open project by the CivicActions team to foster more digital inclusion. This site focuses on open source approaches and builds on global best practices, particularly with government IT.

This repository lets you create WCAG EM Reports using Eleventy.

Content tagged with 'accessibility'.

Content tagged with 'accessibility'.

Content tagged with 'accessibility'.

Find Meetups so you can do more of what matters to you.

With this article, our goal is to introduce fellow engineers, regardless of level, to web accessibility and share our practical knowledge and best practices.

The WebAIM web accessibility mailing list is for anyone interested in discussing web accessibility issues. Individuals from all organizations and specialties are encouraged to join.

Mike Gifford

Courses, webinars, educational videos, and more, offered in web accessibility.

Microsoft

Technology can empower people to achieve more, help strengthen education opportunities, and make the workplace more inviting and inclusive for people with disabilities.

Salesforce Trailhead

Learn what accessibility is and how to make websites and apps accessible to people with disabilities.

Ministry of Testing

Learn with me about what Accessibility is, why it's important to test for and how to get your team started with an Accessibility testing mindset.

edX and the W3C

Get a strong foundation in digital accessibility to make your websites and apps work well for people with disabilities, meet international standards, and provide a better user experience for everyone.

web.dev

An evergreen accessibility course and reference to level up your web development.

Sara Soueidan

A self-paced, get-right-down-to-it online video course for web designers and developers who want to start creating more accessible websites and applications today.

egghead.io

This course will introduce you to accessibility through hands-on, technical examples that are way more effective than reading 10-year-old static web content.

Aquent Gymnasium

A series of five 5-minute tutorial videos hosted by Aquent Gymnasium that deal with introductory accessibility topics.

Marcy Sutton

A self-paced workshop designed to teach you the principles and effective patterns of accessibility, from design to deployment.

a11y-collective.com

The A11Y Collective is the e-learning platform for anyone who wants to learn more about web accessibility. The courses focus mostly on knowledge and skills that are valuable for web designers, developers, webmasters, product owners and web editors.

H. Robert King

In this book, we explore what digital accessibility is, how it is integrated with common functional roles, such as content writer, user experience designer, or engineer, and how it grows as the knowledge and skill of an individual develops, answering the question “how do I get there from here”.

Udacity

In this course you’ll get hands-on experience making web applications accessible.

Jesse Hausler

Accessibility enables people with disabilities to perceive, understand, navigate, interact with, and contribute to the web. Imagine a world where developers know everything there is to know about accessibility. You design it and they build it… perfectly. In this world, only the design itself can cause people with disabilities to have trouble using a product.

Stephanie Hagadorn

We use this library at Indeed to help designers document accessibility considerations to share with developers when handing off designs.

Addy Osmani

To be accessible, UI components need to work across multiple devices with varying screen-sizes and different kinds of input. Moreover, components should be usable by the broadest group of users, including those with disabilities.

Fable

The Accessible Usability Scale (AUS) is a free tool to measure the usability of a digital product for assistive technology users. Inspired by the System Usability Scale (SUS), the Accessible Usability Scale consists of ten questions administered at the end of a user experience to calculate a score.

Avinash Kaur

As a UX designer, it is important to build empathy and celebrate accessibility requirements as a set of design constraints to build a better product.

Stéphanie Walter

Great documentation helps teams implement accessibility requirements the right way. I will tell you why, what and how designers can document different aspects of accessibility and user interactions requirements, to build better more inclusive products.

Affect the Verb

Disabled And Here is a stock image and interview series celebrating disabled Black, Indigenous, people of color (BIPOC).

Pablo Stanley

Seven easy-to-implement guidelines to design a more accessible web.

Sarah Fossheim

Ethical Design Guide is made to share resources on how to create ethical products that don't cause harm.

Thomas Bohm

How can we include as many people as possible when designing graphic communication and information, and how do we not unnecessarily exclude people?

Will Soward

The NDS is a coherent set of standards and principles that combine neurodiversity and user experience design for Learning Management Systems.

Zoltán Gócza and Zoltán Kollin

UX Myths collects the most frequent user experience misconceptions and explains why they don't hold true.

Geri Reid

Here's a checklist I'm working on to help ensure the products I design comply with the Web Content Accessibility Guidelines (WCAG).

TPGi

When you test your website with a screen reader there are a few basic commands you should know.

Yakim van Zuijlen

This article explains why you should be testing your content with a screen reader. It also gives a visual guide on how to use VoiceOver on macOS

Smashing Magazine

Automated accessibility tests are a great resource to have, but they can’t automatically make your site accessible. Use them as one step of a larger testing process.

Knowbility

Keyboard testing is one of the most efficient, impactful, and easy tasks that any team member can do to find accessibility issues.

WebAIM

Answers to common questions.

Envato Tuts+

Creating and designing accessible content means more than just choosing accessible typography. Even with “perfect” font families in place on your website, people with low vision, cognitive, language, and learning disabilities may still struggle to process the text.

Axess Lab

If you’re an art director or font fanatic, you might want to sit down for this. Take a few deep breaths. Go to your happy place. Because I’m going to explain why fonts are overrated and what actually matters for readability.

Thomas Bohm

This paper identifies easily misrecognised letters and symbols in highly legible typefaces for general, children, dyslexic, visually impaired and ageing readers. It can also be considered as a review of related research in this area.

University of Maryland Trace Research and Development Center

The Trace Center's Photosensitive Epilepsy Analysis Tool (PEAT) is a free, downloadable resource for developers to identify seizure risks in their web content and software.

accessible-email.org

It is the mission of Accessible-email.org to promote email marketing accessibility and usability.

24 Accessibility

Some best practices on creating more accessible and inclusive email campaigns, routinely ranked as one of the world’s most valuable marketing channels, yet very little work has been done to make it more accessible for under-represented groups.

MailChimp

Accessibility is a term that gets thrown around a lot in web design, but what does it mean for email marketing? It comes down to some simple changes you can make in your content to remove barriers for subscribers with disabilities.

Envato Tuts+

This guide will walk you through a checklist of over thirty improvements you can make to your emails to make sure they’re as accessible as possible.

Email on Acid

We’re passionate about helping email developers and marketers create and send emails that every subscriber can read and understand, regardless of whether they have a visual impairment or disability.

Litmus

It only takes a few small steps to make your emails more accessible for all of your subscribers. In this post, we’ll discuss what those steps are and how they can make email better for everyone.

Michael Fairchild

Will your code work with assistive technologies?

W3C

Accessibility of web content requires semantic information about widgets, structures, and behaviors, in order to allow assistive technologies to convey appropriate information to persons with disabilities.

Steve Faulkner

Get the current accessibility support status of HTML5 features across major browsers

Dylan Barrell

ARIA 1.0 Roles displayed in the style of the periodic table of elements.

W3C

This document provides readers with an understanding of how to use WAI-ARIA 1.1 to create accessible rich internet applications.

W3C

This collection of tutorials shows you how to develop web content that is accessible to people with disabilities, and that provides a better user experience for everyone.

CSS-Tricks

Scalable Vector Graphic (SVG) is emerging as the preferred graphic format to use on the web today. Are you abandoning the icon font or replacing old pg, gif and png graphics for the well-supported SVG, too? Let’s see how this will impact users of assistive technology (AT) and what is needed in order to ensure a great user experience for everyone.

24 Accessibility

Marco Hengstenberg visits the practice of using SVG icons with inline sprites, and how to ensure these icons are accessible.

WebAIM

Adding alternative text for images is the first principle of web accessibility. It is also one of the most difficult to properly implement.

Axxess Lab

This post contains everything you need to know about alt-texts! When to use them and how to perfectly craft them.

W3C

This decision tree describes how to use the <code>alt</code> attribute of the <code>&lt;img&gt;</code> element in various situations. For some types of images, there are alternative approaches, such as using CSS background images for decorative images or web fonts instead of images of text.

Knowbility

An image, they say, is worth a thousand words. Unless you can’t perceive images. This is why the alt attribute for images on the web is so important.

Scott Vinkle

Find out what alt text is, why it’s so important, and how to write content for your images.

Deque

Scalable Vector Graphics (SVGs) have been around since 1999, but they have seen a real resurgence in use as design interactions have become more complex and CSS/JavaScript have replaced antiquated animation programs such as Adobe Flash.

Poet Training Tool

The Poet Training Tool is a web based image description resource that helps people learn when and how to describe various types of images frequently found in educational books.

Victoria Gonda

Learn to build accessible apps on Android using WCAG through hands-on, step-by-step tutorials.

Fayyazuddin Syed

In this iOS accessibility tutorial, learn how to make apps more accessible using VoiceOver and the Accessibility inspector.

Rob Whitaker

Mobile A11y is a collection of blogs and resources about how we as mobile developers can improve accessibility on mobile devices.

AcceDe

The aim of this guide is to provide all the practical information you need to learn how to tag a PDF document.

Adobe

Acrobat tools make it easy to create accessible PDFs and check the accessibility of existing PDFs. You can create PDFs to meet common accessibility standards, such as Web Content Accessibility Guidelines (WCAG) 2.0 and PDF/UA (Universal Access, or ISO 14289).

CommonLook

Making sure that PDFs are accessible to everyone, including those using assistive technologies like screen readers, refreshable braille displays, screen magnifiers, etc., can be a daunting technical process. In this article, we’ll address two basic PDF accessibility concepts – tagging and reading order. Then, in subsequent articles, we’ll address more specific topics in PDF accessibility.

Pragmatic Access

Although web accessibility is most commonly thought of when talking about digital accessibility, document accessibility also plays an important role. Document formats such as Word, PowerPoint, Excel, ePub, and most commonly PDF, are quite common and are usually linked within web pages or sent via email. As such, it’s important to make sure that those documents are accessible as well.

WebAIM

Defining Acrobat PDF accessibility.

Adobe

Accessible videos not only help those with disabilities but benefits others who want to engage with your videos. Here's what you need to know to make your videos accessible.

Opening the doors for a free day of accessibility learning.

A curated playlist of talks, focused on digital accessibility.

Where else can you conquer an all-inclusive climbing wall, show off your skills in adaptive sports, learn moves from pioneers of inclusive dance, find the perfect device to meet your needs and so much more?

ACCESS is an annual conference by 3Play Media celebrating video, accessibility, & the people who make it happen.

Over the past 22 years, ATIA has been a community gathering for assistive technology practitioners, teachers, parents and caregivers, persons with disabilities and more to learn, network and share on the best in assistive technology.

Axe-con is an open and inclusive digital accessibility conference that welcomes developers, designers, business users, and accessibility professionals of all experience levels to a new kind of accessibility conference focused on building, testing, and maintaining accessible digital experiences.

Annie Jean-Baptiste

How can business leaders adapt to our ever-more-diverse world by capturing market share and building more inclusive products for people of color, women and other underrepresented groups? The Product Inclusion Team at Google has developed strategies to do just that.

Discover how AT can change lives and improve learning!

Known as a forum that showcases cutting edge technology and practical solutions that can be utilized to remove the barriers that prevent the full participation of persons with disabilities in educational, workplace and social settings, the conference is the largest of its kind in the world.

We bring together experts from the fields of accessibility and legal to discuss current trends, and to provide insights that will be helpful to practitioners in their work on digital accessibility.

Future Date is a free, volunteer-led, virtual accessibility conference. Our goal is to expose our audience to the pioneering work and lived experiences of disability and accessibility leaders.

The purpose of GAAD is to get everyone talking, thinking and learning about digital access and inclusion, and the more than One Billion people with disabilities/impairments.

ICCHP is a series of biannual scientific conferences in the field of ICT/AT for people with disabilities.

The annual ICT Accessibility Testing Symposium is a place for in-person knowledge sharing in ICT Accessibility Testing research and practice and for professional networking.

A free 24-hour online event for the global community. It celebrates inclusive design and shares knowledge and ideas from analogue to digital, from design to development, from planners to practitioners, and everything and everyone in between.

Whatever your role in digital accessibility, wherever you are on your journey, there is simply no better place to learn and connect to the global community than the annual John Slatin AccessU conference.

The M-Enabling Summit Conference and Showcase is dedicated to promoting accessible and assistive technology for senior citizens and users of all abilities.

The Magnify Conference was created from a surge of inspiration when seeing so many talented people practicing inclusive design practices daily across the globe.

The conference focuses on all aspects of web accessibility. Areas of general interest include, but are not limited to the following: age, cognition, culture, education, emotions, dexterity, disability, diversity, health, hearing, income, infrastructure, language, learning, literacy, mobility, situation, society, and vision.

George Hewitt

A digital accessibility job board.

Marlijn van der Bok

Combatting discrimination when entering the job market

Scott O'Hara

These questions try to act as conversation starters, to gain insight into how someone solves problems, and interprets accessible, inclusive user experiences.

Inclusive workplaces for everyone

Connecting disabled jobseekers with supportive work environments, and a diverse pipeline of candidates for employers.

Chicago, Illinois

A guide to accessible presentations, for presenters, speakers.

Toronto, Canada

#a11yTO actively promotes digital inclusion for the design and development communities in and around the Greater Toronto Area.

Florida, United States

Access + Equity is a brand-new series featuring some of the best minds in the field of disability rights and accessibility.

Chicago, United States

Accessibility Twin Cities is designed to connect and support individuals who work in – or are even simply interested in – the field of digital accessibility and accessibility testing for organizations, businesses and government.

Minnesota, United States

A community of digital professionals passionate about making the world more accessible and inclusive.

Philladelphia, United States

The Philly Accessibility Meetup exists to connect and elevate the local accessibility community.

San Diego, CA

San Diego Accessibility & Inclusive Design meetup

Seattle, United States

Accessibility Seattle is dedicated to the simple premise that 'digital inclusion' is fundamental.

Nürnberg, Germany

The Accessibility Club gives you the chance to get some real-world experience with assistive technology, deepen your knowledge about web accessibilty and get in touch with like-minded webworkers.

Washington DC, United States

Accessibility DC is a monthly meetup once every month and is a chance for people who are interested in Accessibility to get together and share information. Web Developers who are interested in Web Accessibility and Adaptive Technology Users who have a daily experience of accessibility issues are all welcome to attend.

New York, United States

Our group exists to advance accessibility and inclusive design. Our goal is to bring together NYC's accessibility community to share ideas, best practices, and our experiences.

Tokyo, Japan

Accessibility VR is a monthly meetup that brings together people interested in accessibility in virtual reality to share ideas, best practices, and our experiences.

Michigan, United States

Accessibility group based in Ann Arbor, Michigan.

Online

Free, virtual digital accessibility conference with tracks for design, develoopers, business leaders, and compliance.

Online, in-person

Calendar of digital accessibility events.

Bay Area, United States

Calling all Bay Area developers, designers, accessibility, usability and any other high-tech professionals who have an interest in digital (web, mobile, etc.) accessibility and users with different disabilities.

Bristol, United Kingdom

A meetup for anyone involved in digital design and development, accessibility and inclusive design.

Budapest, Hungary

A meetup for Hungarian developers and designers.

New York, United States

This is a venue for developers, designers, UX professionals, copywriters, QA professionals, and so on, to get together to learn from and share with others everything we can about accessibility and inclusiveness.

Manchester, United Kingdom

A meetup in Manchester focussing on making digital services accessible and inclusive to everyone.

North Carolina, United States

Are you interested in digital accessibility? Join this group of practitioners and inquirers as we explore how to make all aspects of digital life accessible to all people.

Berlin, Germany

A11y Meetup Berlin is designed to bring together the accessibility, web performance, and inclusive design community to share and discuss ideas, best practices, and experiences.

Ohio, United States

Accessibility is for everyone. We seek to increase awareness of digital accessibility, inclusive design, and assistive technologies in Northeast Ohio in a setting of sharing, learning, and networking.

Utrecht, Netherlands

We like to come together to talk about inclusive design and accessibility. Be it UX design, UI design, EU law changes, web accessibility, product design, user research, what have you.

The Portland Accessibility and User Experience (PDX A11Y UX) Meetup addresses how to incorporate accessibility and universal design principles into project planning, user research, and UX evaluation.

Oregon, United States

Perth, Australia

OZeWAI is an association of volunteers working to make the information world more inclusive. It was the first such organisation in Australia and has been a leading initiative in the field for more than 20 years.

Tokyo, Japan

Australia

A11y Bytes is a dynamic fast-paced evening of lightning talks about digital accessibility and the needs and preferences of users with disabilities, run in multiple cities across Australia.

Melbourne, Australia

Based in Melbourne, Australia, this group is for web practitioners and other professionals who are interested in web accessibility and inclusive design practices.

Sydney, Australia

This Sydney group is for anyone interested in inclusive research, design and development practices. This includes accessible design and development, user research that involves people with disabilities in a holistic, integrated fashion as well as compliance with international standards such as the Web Content Accessibility Guidelines.

Edinburgh, Scotland

Accessibility Scotland’s focus is on providing a friendly, affordable, and informative day focused on digital accessibility and inclusion.

London, United Kingdom

We are the UK's largest accessibility community, a welcoming and friendly group of people focussed on digital products, digital services and the built environment across the public, private and charitable sectors.

Montréal, Canada

a11yMTL is a bilingual interest group for anyone passionate about web accessibility, universal design, and digital inclusion.

Amsterdam, Netherlands

What on Earth is a role=drinks? It’s an accessibility meetup! The event features lightning talks by accessibility specialist, time to talk to the speakers and fellow attendees, and more than enough time to grab a drink.

We help organizations large and small navigate their path to digital accessibility through live-user audits, training, support and monitoring.

Deque Systems provides web and mobile accessibility solutions so you can meet compliance goals and help make the web accessible to all users.

We help organizations be more inclusive and accessible by providing accessibility audits, training, and consulting.

We help organisations be more inclusive and accessible by providing digital accessibility audits, training, strategy, usability testing, and consulting.

Knowbility is a nonprofit organization with the goal of improving technology access for millions of youth and adults with disabilities all over the world.

Level Access is a company that provides digital accessibility solutions and services to corporations, government agencies, and educational institutions.

We work with brands who are listening. They want to make products and services you will love. They understand the value of insight from those who sense, think, move and feel differently.

Via our inclusive design methodology, we help you design, develop, and produce inclusive experiences. We work across digital and physical spaces, spanning websites, mobile apps, small-to-large capital projects, themed experiences, and much more.

We're a company with inclusion at its heart. Our focus is on emerging as well as existing technologies, offering knowledge, experience, strategic, and development services.

TPGi – Your Accessibility Partner (WCAG 2.0/508 audits, VPAT, usability and accessible user experience).

Our mission is to empower organizations to make their web content accessible to people with disabilities.

We’re accessibility experts who live with the disabilities you’re trying to accommodate. Let us help you bring real-life accessibility, and legal compliance, to your projects.

We help organizations large and small navigate their path to digital accessibility through live-user audits, training, support and monitoring.

Access Works offers usability and accessibility testing that connects businesses with users with disabilities.

Web accessibility testing services to reach your compliance goals faster. Connect with real users online and on-demand, through crowdtesting!

Loop11 is a website user testing tool that enables you to identify navigational and usability issues of any website.

Perkins is so much more than a school. Our services help make the world a better place for people who are blind or visually impaired – from independent evaluations to assess a student's needs and strengths, to our Outreach Short Courses, which offer adventures and opportunities to practice skills to support independence and self-advocacy.

Scott O'Hara

A repository of styled and “styled” form control elements and markup patterns, and how they are announced by screen readers.

Kitty Giraudel

A very lightweight and flexible accessible modal dialog script.

Rob Levin

A lightweight (<1Kb) JavaScript package to facilitate a11y-compliant tabbed interfaces.

Eric Bailey

A webring for digital accessibility practitioners.

Cameron Moll

PDF accessibility checklist.

Ire Aderinokun

The WCAG contain some very useful information, and so I decided to condense the very extensive guidelines and highlight some practical examples of what we can do to implement them and make our websites more accessible.

Peter van Grieken

This is a starter guide for teams about delivering accessible websites. Each person on your team has their own responsibilities, this guide tells you what everybody needs to do.

Alexa Heinrich

Accessible Social is a free resource hub for digital marketers, communication professionals, content creators, everyday social media users, and anyone who wants to learn how to make their content inclusive and accessible for people with disabilities.

Matt May

Content for a full-day workshop on inclusive design, including workbook modules, and exercises.

Fable

A list of assistive technology terms and what they mean.

Deque

Describes an agile development process to faciliate accessibility called Accessibility Behavior Informed Development (a11yBID).

GitHub

A non-exhaustive and in-progress list of people and resources in Accessibility and Data Visualization.

24 Accessibility

When we look at disability as a spectrum instead of a binary, we can see that a lot more people struggle to use our stuff than we might think. The good news is that making things accessible helps even more people than we might realise.

Disabled and Here

This stock collection is a disability-led effort to provide free and inclusive images from our own perspective, with photos and illustrations celebrating disabled Black, Indigenous, people of color (BIPOC).

Eric Bailey

Prompts to consider when making things for others to use.

Google

Everyone should be able to access and enjoy the web. We’re committed to making that a reality.

DMOZ

The Directory of the Web.

Coupon Follow

In-person shopping can be difficult and stressful for disabled people for many reasons, from tall checkout counters to non-navigable spaces, but meanwhile, disabled Americans are more likely to never use the Internet compared to the total population.

Suzanne Aitchison

Tutorials and resources for developers seeking to build accessible web experiences.

Nicolas Hoffmann

A collection of accessible scripts for rich interfaces elements, built using progressive enhancement and customisable.

WebAIM

Optimal accessibility should start much earlier, as part of the visual design process. We have created an infographic that highlights a few important principles of accessible design.

Google

A concise treatment of accessibility principles and practices.

WebAIM

The main content is not usually the first thing on a web page. Keyboard and screen reader users generally must navigate a long list of navigation links, sub-lists of links, corporate icons, site searches, and other elements before ever arriving at the main content. This is particularly difficult for users with some forms of motor disabilities.

WebAIM

“When you incent, people optimize for reward. When you inspire, people optimize for purpose.”

Nielsen Norman Group

All articles tagged with 'accessibility.'

Yoast

One of the complaints I’ve often heard from business owners and managers is that implementing accessibility is hard and slows down the development process. For this reason, sometimes accessibility gets postponed or set aside in the erroneous belief that’s something that can be “added” later. Here, I’d like to share my thoughts on why I think the first statement is misleading.

Manuel Matuzovic

Tips on how to improve the accessibility of your web sites and apps with CSS.

The Increment

When we talk about accessibility in the tech industry, most conversations are centered around the end user. But how accessible are the tools we code for other developers?

User Design, Illustration and Typesetting, previously Usability Geek

Every day we use graphic communication design from reading letters which have come through the post, or the newspaper in the morning, to reading and using information at work, to travelling and navigating in the environment. How can we include as many people as possible when designing graphic communication and information, and how do we not unnecessarily exclude people?

U.S. General Services Administration

A ‘quick-start’ guide for embedding accessibility and inclusive design practices into your team’s workflow.

Dias GmbH

Access & Use shows what it needs to make dynamic elements in websites accessible and usable for all.

Amy Dickens

Accessibility of the world wide web hasn’t always been a number one priority for web developers (much to detriment of internet users). Whilst very few people set out to design a website that is inaccessible, many studies have documented partially or completely inaccessible websites.

Erik Kroes

Are you a person that makes digital things for other people? Awesome—because this page is all about making things for people.

WebAIM

Provides advice for how to review and repair accessibility issues for Microsoft Office.

Max Antonucci

This post aims to tell you a few key things about accessibility. I can't cover everything, but I can cover: why accessibility matters, how to make a website accessible, and how to test for accessibility.