This book will give the novice the information needed to rehabilitate Hammond synchronous clocks. The only thing I found lacking was advice on removing the brass bezel from clocks with domed glass. Otherwise, my service of the open and sealed motor types of clocks went just as described. I couldn't find any help online, so I invested in this book. Hammond clocks are relatively simple and, with the help of Craig's book, you can enjoy rescuing them and putting them back in working order.