Randy Leffingwell wrote his first book, American Muscle, in 1989 while still on staff at the Los Angeles Times. Since then, he has authored more than 50 other titles, covering subjects from sports cars to motorcycles to farm tractors. Leffingwell is considered one of the top transportation photographers and historians working today. Some of his previous best-selling Motorbooks titles include Art of the Corvette, Porsche 911: Fifty Years, John Deere: A History of the Tractor, and The Harley-Davidson Motor Co. Archive Collection (with Darwin Holmstrom). He lives in Santa Barbara, California.