The clock repair primer is a book designed to enable ordinary people to perform the simple repair of spring or weight driven pendulum clock movements, it is written in layman’s terms in a simple step-by-step manner and assumes that you are totally unfamiliar with how a clock works, why they stop and what can be done to restore them to running order. This paperback book has 151 pages, it is in good used condition, the cover has some wear marks on the corners, edges and back