A website is a necessity in today's society. Hundreds of millions of users are connecting to the Internet from all over the world. But for people with disabilities this can be an uncomfortable, and sometimes frustrating, experience. Clearly new design approaches are needed to address specific needs of people with disabilities.

Sarah Horton's goal is universal usability, and she wants to get there by educating Web designers on how to put sites together that don't exclude anyone.

Is her new book Access by Design: A Guide to Universal Usability for Web Designers worth buying? Find out how James McNally, contributing writer for the Digital Web Magazine, criticizes her work.