Common Sense Dressage by Sally O'Connor. Ms. O'Connor is a Chef d'Equipe for the USET. Her book covers every aspect of dressage from groundwork to piaffe and passage. Her text ""...explains the challenges of dressage in a straight-forward, easy to understand fashion,...the graphics are marvelous."" The Chronicle of the Horse. A must have for every dressage enthusiast! 170 pp. Hardcover.