The Complete Guide to Guitar and Amp Maintenance: A Practical Manual for Every Guitar Player by Ritchie Fliegler
(Hal Leonard, 1994) This essential tome of tone focuses on the most commonly performed procedures for every guitarist and tech and contains over 150 photos (with TONS of insider information) from technicians, engineers, and roadies. Meant to be a book you keep on your bench with charts in the back for measuring things like forward voltage in amp, height measurements when setting action and pickup height on a particular instrument, etc., this book will pay for itself in bench fees immediately. GO GET THIS.