| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The American Mustang Guidebook: History, Behavior, and State-By-State Directions on Where to Best View America's Wild Horses | 978-1-57223-403-1 (1-57223-403-2) | 2001 |
| Why Horses Do That: A Collection of Curious Equine Behaviors | 978-1-57223-707-0 (1-57223-707-4) | 2003 |