Ben pointed out Dive Into HTML5, a Creative-Commons licensed guide to HTML5 features. I’ve been idly reading through it while waiting for tests to run. I’m just through Chapter 1, How Did We Get Here?. It’s a short history of the development of the HTML standard. You would think it would be about as exciting as reading a book about unit testing, but it’s surprisingly interesting.
Plus there’s a drawing of a monkey reading a book. It may even be a book about unit testing, but the monkey doesn’t look particularly bored.