A Thoroughbred horse is bred for speed. The horses that take part in many storied races, such as the Kentucky Derby, Preakness Stakes, and Belmont Stakes, are all Thoroughbreds. In fact, almost all racehorses the United States are Thoroughbreds. The compelling text discusses how these swift steeds are bred, raised, fed, and more. Great horse photographs are featured and accompanied by information about the history of the breed.