This book has a little bit of something for everybody and no one will lose out by buying this book, though a beginner will probably get more out of it.
The author speaks very plainly and gets his point across very well. He won’t leave you dazed and confused by trying to sound extremely professional and using big or obscure words unless he has already defined and explained that word previously. Also, if you somehow do get confused, there are free screencasts included with the purchase of the book where he demonstrates things even more clearly and visually so there’s no way you can be totally lost.
In addition to the Rockable Press website, you can also purchase the book on Amazon.