I had never played brazilian guitar (actually I really hadn't played that much guitar at all) before buying this book. After almost a year of studying and listening, I am really, really satisfied. The examples are brilliant. The CD is done well. The only criticism I have is that some of the really difficult chords need some explanation (like put x finger on y fret) and encouragement (like, Hey this is a really tough chord but hang tough...etc). However, there are good explanations for almost everything which could cause doubt. I really, really love this book. It has changed my life.