Grand répertoire des planches-cadrans de pendule by Reinhard Lehner is a comprehensive reference guide dedicated to the identification and cataloging of clock dials (planches-cadrans) used in pendulum clocks. Published in 2001 by Médicis Entrelacs, this 206-page spiral-bound volume serves as an essential resource for horologists, antique clock collectors, and restoration specialists. The book systematically documents a wide array of dial designs, including variations in numerals, decorative elements, maker signatures, and regional styles, enabling accurate attribution and dating of timepieces. Its detailed illustrations and organized structure make it a practical tool for authentication and scholarly study within the field of horology. Written in French, it fills a niche in the literature on European clockmaking history and material culture.