A worthless book. the information in it is very misleading and wrong! One example is in the beginning of the book it says how 600 X 800 resolution is the most common for computers but there's two problems with that passage. One: there's no such thing as 600 X 800 resolution for computer screens, they most likely meant 800 x 600 but that's a stupid typo that even the editors missed, and two: the most commonly used resolution for computer programs today is 1024 x 768! It teaches you how to use very faulty and ridiculous programs to make games. The examples in the book are just terrible. Bottom line is don't get it. I had to get it for a college class and we didn't even really use it!