Jec Ballou is the author of 101 Western Dressage Exercises for Horse & Rider, 101 Dressage Exercises for Horse & Rider, and Equine Fitness. She is a national advisor to the Western Dressage Association of America and contributed to the current rules for the sport. She teaches clinics across the United States. She lives in Santa Cruz, California.

Stephanie Boyles is the co-author of 101 Western Dressage Exercises for Horse & Rider, founder of Unbridled Rider, and the creator of the mobile applications 101 Dressage and 101 Western Dressage. Boyles lives in Boulder, CO.

Al Dunning has been training award-winning Quarter Horses and outstanding riders for more than 40 years. He and his students have won numerous national titles in reining, cutting, working cow horse, and other disciplines. He owns Almosta Ranch in Scottsdale, Arizona (www.aldunning.com).