What is HTML5?
What is HTML5? is a concise introduction into the differences between legacy HTML standards and the latest standard, HTML5. hot
Dive into HTML5
Dive Into HTML5 elaborates on a hand-picked selection of features from the HTML5 specification and other fine standards. This book is about HTML5, not previous versions of HTML, and not any version of XHTML.
DOM Enlightenment is an exhaustive book written about Document Object Model (DOM) scripting without the use of a library/framework.
HTML5 Quick Learning Guide
HTML5 Quick Learning Guide is a brief and concise book that helps the reader learn to migrate from HTML/XHTML to HTML5.