Also included is the 4th Edition of the Big Blue Book of Bicycle Repair, updated in 2019 with the latest information, procedures and techniques and covering everything from minor adjustments to complete overhauls. Features clear, step by step instructions, high quality color photos and useful charts and graphs to thoroughly explain and demonstrate hundreds of repairs. Written by one of the industry's leading authorities on bicycle repair and maintenance, Park Tool's director of education, Calvin Jones. The Big Blue Book is the perfect reference guide for nearly any level mechanic and every bike.