As the world continues to march to information on the Internet, the issue of accessibility for Web sites has continued to grow in importance. Especially as glitz and flashy programming grow ever more popular in Web design, the chance of leaving those with special needs behind increases. What accessibility means also can be a murky area, though as lawsuits against Target and other stores over Web accessibility shows, this is still important. Sydik helps cut through the often vague standards to show the reader step-by-step things that are important for accessibility, but often are not major changes. He explains what accessibility entails, and looks at different solutions, and the pitfalls that some can produce making things worse for accessibility when it is trying to improve it. His chapters are grouped into thematic sections, but each chapter focuses on one item, keeping the information short and relevant to the topic. At the conclusion he walks through the current and proposed accessibility standards and gives practical advice and translation of what the sections mean, and what you can do about it (citing chapters that addressed the topic). This book is very readable, practical and sits on my desk for quick reference and advice. It is an excellent starting point for acquainting yourself with the issue of accessibility for Web sites and what you can do to help design them properly.

Jeremy's Design Accessible Web Sites provides practical advice alongside with the theoretical underpinnigs in upbeat style. This books covers actionable steps to take in fixing many common accessibility problems but it also does something more important. It gives the reader a theoretical framework for considering and solving accessibility issues for tricky scenarios.

Some other books are better on regulatory issues and others on multimedia items like Flash since the focus here is web site design. That said, it's a great read for web site design and web standards work. For that it's first rate, with modern techniques and consideration of the future of accessibility issues (AJAX, WCAG 2), and with a breadth and richness of subject matter.

DESIGN ACCESSIBLE WEB SITES is an excellent guide to making your web site(s) usable by anyone, regardless of their access needs. It is also not the dry and unfriendly tome that others have put out in regards to this subject...that is to say, it is very readable, even fun in some places! There are plenty of code examples as well as lists of specific tools and references that can be used to make your site accessible to everyone.
It concentrates mainly on the U.S. accessibility requirements, but it also covers what you need around the world.
Most importantly, Jeremy stresses that making your web sites accessible makes them easier for EVERYONE to navigate, not just those individuals with special access needs, and that is a bonus for everyone!