The 39 ooccurrences are noteworthy. 20 of those used more general meanings of accessibility or usability, not specifically applied to the web. Absence in most of these books suggests absence in training or self-study using them. Usability, Accessibility, Internet Business, XML Conclusions Recommended Education and Outreach Actions 1. The Softpro Independent Computer Bookstore has their collection on-line, categorized, and with a summary of each individual book on a page describing it.
Most books have title, author, date, publisher, price, and ISBN number.
I have omitted the price in the entries below. Keyword search of the collection is also possible, yielding a pertinent extract from the summaries. I found only a few books mentioning either word in those summaries or the extracts of them. Of the mentions, about half were using more general meanings of these words. The categories of web design and web authoring tools should address accessibility and usability.