Creative Horsemanship
The Athletic Development of the Dressage Horse: Manege Patterns (Howell reference books)
Complete Training of Horse and Rider
Reflections on Equestrian Art
Fit to Ride in 9 Weeks!: The Ultimate Exercise Plan: Achieve Straightness, Suppleness, and Stamina In the Saddle
Equine Fitness: A Program of Exercises and Routines for Your Horse
The Ethics and Passions of Dressage