| title | ISBN-13 | year of publication |
|---|---|---|
| The Secret Language of Cats | 978-1-4351-3778-3 | 2011 |
| The Secret Language of Cats - The Body Language of Feline Bodies | 978-1-4351-2901-6 | 2011 |
| The Secret Language of Dogs: How to Communicate Effectively with Your Dog | 978-1-84543-413-7 | 2011 |
| The Secret Language of Dogs The Body Language of Furry Bodies | 978-1-4351-3777-6 | 2011 |
| The Secret Language of Horses | 978-1-4351-3877-3 | 2012 |