This book was written by a man with over 30 years at the clock repair bench. It consists of 105 pages with over 131 illustrations, drawings, photos and tables. This book covers material no other cuckoo clock repair book covers.For instance: detailed explanation of Regula movements, the operation of the Regula rack and snail system; the cuckoo bird locking mechanism; Hubert Herr movements; Schatz Movements; detailed explanation of adjusting a music box; automation and animation; how to build a cuckoo clock test stand; plus, how to remove the dreaded pressed on hammer lift wheel, tools, repairs, and much, much more. The book is presently being used as a text book at a Community College adult education cuckoo clock repair course. The professional cuckoo clock repair fraternity are all saying "this is just what we needed". Here are some reviews from readers: This book lives up to all the hype. It is full of practical information that is easy to follow. I've read a lot of books on clock repair, even some exclusively on cuckoo clocks and I've never found one to be equal to this book. Anyone and everyone will find Mr. Bilger's book a fascinating exposition on the workings of a cuckoo clock. As the book says, it is a complete how-to-do it book for both the amateur and professional. Written in a clear and lucid manner. A joy to read. Informative and easy to understand. I Keep this book close to my work bench. It is the most helpful book I have on the subject. It is about time; this book was long overdue! " Along with the text, the drawings and photos make everything so easily understandable.