BookSurge Publishing · Celestial Arts
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| AnimalSign TO You. Imagine! Signing Is Not Just For Primates Anymore | 978-1-4196-3622-6 (1-4196-3622-7) | 2006 |
| Dogs Can Sign, Too: A Breakthrough Method for Teaching Your Dog to Communicate | 978-1-58761-353-1 (1-58761-353-0) | 2009 |