Darwin Holmstrom has written, co-written, or contributed to over thirty books on subjects ranging from motorcycles and muscle cars to Gibson Les Paul guitars, including Indian Motorcycles, GTO: Fifty Years, Let's Ride: Sonny Barger's Guide to Motorcyclying,Top Muscle: The Rarest Cars from America's Fastest Decade, BMW Motorcycles, The Harley-Davidson Motor Co. Archive Collection, and The Complete Idiot's Guide to Motorcycles. Darwin is the senior editor for Motorbooks. Prior to that he served as Midwestern editor for Motorcyclist magazine.