| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| One Hundred Secret Thoughts Cats Have About Humans | 978-0-340-86170-7 (0-340-86170-3) | 2003 | Celia Haddon |
| One Hundred Ways for a Dog to Train Its Human | 978-0-340-86236-0 (0-340-86236-X) | 2003 | Simon Whaley |