I've said on more than one occasion that it was gaming that initially got me into programming. Initially just cheating at games (I hacked my Bard's Tale save and I modified the source code in Lemonade Stand), but what I really wanted to do was create my own games. That dream pretty much went away when I left the computer science program in college and discovered the web, but I've toyed with the idea of building my own web-based games from time to time. A while back, I was lucky enough to get a copy of "Build an HTML5 Game" by Karl Bunyan.
As you can imagine, the book walks you through the process of building a game using web standards. The game, a simple bubble shooter you can play here, is built iteratively throughout the chapters. You start building each piece one at a time, gradually adding more features and logic to the game. It felt like a good pace to me and I only really struggled during some of the mathematical parts. (I'm a bit ashamed to say that, actually. I was pretty good at math growing up but since I haven't really used complex math since my early college career it's all wasted away.)
Finally, the book wraps up by talking a bit about more advanced topics, like performance tuning, WebGL and deployment issues. This is a good section, but pretty slim. I think in the next edition this could be expanded significantly. The book's definitely packed with information now, but making this last portion even larger could make a great book even better.
If you have any interest at all in learning how to build games with web standards, then I definitely recommend checking it out. You can find out more about the book, including seeing the table of contents, at the book's web site: http://buildanhtml5game.com/
p.s. As a slightly off topic aside, this was my first introduction to Modernizr. While I had certainly heard of it before, I had never actually used it. The game you develop in the book makes heavy use of it and I'm happy I had a chance to actually use it. I didn't know it had a loader feature with fallback support. That was pretty darn neat.