This book cna be used in two ways;
1. You can be a total beginner and just read it cover to cover and will do just fine and learn some cool techniques.
2. Like me, you can have a general idea of how to use Google SketchUp but want to learn how to export to AutoCAD or something like that, learn some new drawing techniques.
Either way this book is brilliant, I found it very intersting and intuitive for my studies. As Google SketchUp has been recogonized by the Government as a program very useful and adept for architecture, I feel this will just grow and Google SketchUp will be used everywhere as a basic 3D modelling program. But to just be able to know SketchUp is fun in itself so everyone should have a go at it!!