Pro Motocross & Off-Road Riding Techniques. This is the best-selling book of its kind and was written by Donnie Bales and Gary Semics (McGrath's former trainer). It features 224 pages explaining riding techniques of the pros in a step-by-step manner that is easy to understand. There are over 250 photos of guys like Ricky Carmichael, James Stewart, Jeremy McGrath and more.