The United States Pony Club is among the largest equestrian organizations in the United States, with thousands of members in clubs and centers across the country. Susan E. Harris is an international clinician, riding instructor, and artist. She has taught all seats and styles of riding and travels worldwide to give riding clinics and instructor-training courses in Centered Riding and Anatomy in Motion. In 2004 she was honored as a Master Instructor by the American Riding Instructor Association.