I actually borrowed this book from the library. Having already learned much about Google Sketchup from the video tutorials on the official site, it doesn't make sense for me to buy the book.
The reason I still borrowed the book is because I saw a couple of new tips not available on the Google Sketchup site. The book has plenty of those little tips that makes modeling faster. The tutorials are concise and easy to follow. It covers all the basics including features available only for Google Sketchup Pro (paid version).
The version of the software covered by this edition (May 2009) is Google Sketchup 7.
Great book on learning Sketchup. But if you want to save some money, you can try out the video tutorials.
Visit Amazon to check out more reviews.
If you buy from the links, I get a little commission that helps me get more books to feature.