As a musician, I absolutely hate books of musical transcriptions that are factually incorrect. I own several song books that are, to my mind, next to useless, due to inaccuracies and general vagueness in relation to the music they purport to represent (partic. chordally speaking). As a drummer and drum teacher, frequently transcribing music for both playing and teaching purposes, finding accurately transcribed charts by a drummer of such fundamental importance in modern drumming as Bonham, is a real pleasure, and very helpful. I'd already spent many hours painstakingly transcribing 'Black Dog' and 'Good Times, Bad Times', and was embarked on further Bonham transcriptions, when I discovered this book. It's saved me loads of time and energy. Thanks to Joe Bergamini and Alfred Publishing for a great book!