Dive Into Accessibility: 30 Days to a More Accessible Web Site
http://diveintoaccessibility.org/

Pilgrim, Mark
Dive Into Accessibility
2002

Abstract:

This book answers two questions. The first question is 'Why should I make my web site more accessible?' If you do not have a web site, this book is not for you. The second question is 'How can I make my web site more accessible?' If you are not convinced by the first answer, you will not be interested in the second.