Introducing HTML5 By Bruce Lawson, Remy Sharp
Publisher: New Rid..ers Press; 2 edition 2011 | 312 Pages | ISBN: 0321784421 | EPUB + PDF | 5 MB + 20 MB

new semantics and structures to help your site become richer and more accessible
applying the most important javascript APIs that are already implemented
using and controlling native multimedia
how to build more intelligent web forms
implementing new storage options and web databases, including both WebSQL and IndexedDB
how geolocation works with HTML5 in both web and mobile applications

And this new edition adds:

even more detail on canvas, geolocation and offline storage options

browser history controls to make applications more usable and bookmarkable
ways to use HTML5 now in older browsers