Lateral work is an essential part of any training program and a key step to developing a supple horse. This step-by-step guide covers each lateral movement and provides exercises designed to prepare horse and rider for the first lateral steps as well as stretching and loosening exercises. Instructions demonstrate how to properly structure a training session, how to clearly direct the horse to perform required movements, and how to systematically educate the horse to perform lateral work. It is an ideal reference for all types of horses, including those preparing for competition.
This book gives a very interesting explanation of each of the lateral movements, but lacks in some specifics on the aids. I'm not sure I can entirely apply the advice without more detail. There is a great explanation of one-sideness/stiffness and what effects this has on the horse's movement, though. The terminology leans towards continental usage, which is to be expected, given the author's German background. I appreciated the philosophy of the author, in that he recommends lateral work as useful for lots of types of riding, not just dressage.