| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Russian Tortoises | 978-0-7938-2882-1 (0-7938-2882-1) | 2006 |
| Sulcata and Leopard Tortoises | 978-0-7938-2898-2 (0-7938-2898-8) | 2008 |
| Tortoises: A Comprehensive Guide to Russian Tortoises, Leopard Tortoises, and more | 978-0-7938-2863-0 (0-7938-2863-5) | 2012 |