Some people learn well by reading about a subject. For software, though, I find there's nothing better than just diving in and trying to do something useful with it. This little book takes you on a guided tour actually using Sketchup - when you're done, you're well on your way to take on other projects. I do appreciate the well-written prose, helpful suggestions and a well-thought course of learning. If you're like me, you'll learn Sketchup very quickly following the author's steps.