The document discusses the 5 most popular horse breeds which are the Morgan Horse, Arabian Horse, Thoroughbred Horse, American Quarter Horse, and American Paint Horse. It also covers the most common uses for horses such as riding, working in fields, trail rides, and jumping. The document then lists the four components horses need for food as water, hay, grain, and other nutrients. It includes links to animated clips of trail riding and pictures of horses in action for different riding styles.