This is a wonderful book written by a true Leica expert. Eastland takes us through the M7 from its basic operation to advanced techniques. Previous Leica users will enjoy Eastland's references to earlier cameras, but such references are not so prevalent that they will annoy readers for whom the M7 is their first Leica. It's more than an expanded user's manual, it gets you excited about photography in general and the M7 in particular. If you own an M7, you should have this book.