In “Friction, Lubrication and the Lubricants in Horology,” W. T. Lewis delves into the intricate mechanics that underlie timekeeping devices, illuminating the critical roles of friction and lubrication in horological precision. This work combines an analytical approach with a clear, accessible style, effectively bridging the gap between complex engineering concepts and practical horological applications. Lewis contextualizes his discussions within the broader tradition of mechanical science, emphasizing how advancements in materials and technologies have historically influenced the evolution of watchmaking and clock mechanics. W. T. Lewis, a seasoned horologist with decades of experience in watchmaking and restoration, draws upon both his academic background and hands-on expertise to craft this authoritative text. His deep understanding of the interplays between mechanical forces and material properties is evident throughout the book, providing invaluable insights that are informed by both historical trends and modern innovations in lubrication sciences. This book is a must-read for anyone interested in horology, from seasoned watchmakers seeking to refine their craft to enthusiasts wishing to understand the science behind the subtleties of mechanical timepieces. Lewis's authoritative examination not only enhances technical knowledge but also sparks a genuine appreciation for the art and science of timekeeping.