Book 9 German Clocks covers repair procedures for a category of clocks representing a wide range of styles and ages. This book is organized into four chapters covering several types of German clocks. Chapter 1, Older German Wall & Mantel Clocks, covers late 19th and early 20th century German movements. Chapter 2, Modern-Era German Movements, provides repair information on wall and mantel clock movements from the second half of the 20th century, as produced by Hermle, Urgos, Jauch, and others. These German movements were cased and sold as complete clocks by American companies such as Howard Miller and Ridgeway. Chapter 3, Cuckoo Clocks, describes a group of clocks loved by their owners, yet avoided by some repairers. Most cuckoo clocks were designed to run one day on a winding, with a cuckoo bird figure appearing every hour. Some cuckoo clocks had complications such as music boxes and miniature whirling figures in colorful German costumes. Chapter 4, 400-Day Clocks, covers a style of German table clock that was manufactured in the millions in the second half of the 20th century. These clocks featured a torsion pendulum that rotated in one direction and then reversed itself, rather than a swinging pendulum or a balance. Grandfather clocks with German movements, whether modern-era or older, are covered in Book 4 Grandfather Clocks in this series. Steven G. Conover writes books on clock repair and clockmaking. His book titles include Clock Repair Basics, a beginning book; Chime Clock Repair, a text covering the most common chime clocks seen by repairers; Building an American Clock Movement, which illustrates how to make a complete timepiece movement; and Repairing French Pendulum Clocks, covering several types of French clocks. As editor of Clockmakers Newsletter, Steven published an eight-page subscription newsletter featuring clock repair articles, repair tips, questions & answers, and product reviews, from 1987 through 2008. He is working on a Workshop Series of books based on Clockmakers Newsletter. The series presents the edited, updated content of the newsletter issues, reorganized by topic. Steven is a graduate of Northeastern University, Boston Mass., and a Fellow of the National Association of Watch & Clock Collectors (NAWCC).