| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| At the Still Point | Hardcover | 978-0-684-80217-6 | 1996 |
| Just for Elephants | " | 978-0-88448-283-3 | 2006 |
| Tarra & Bella: The Elephant and Dog Who Became Best Friends | " | 978-0-399-25443-7 | 2009 |
| Tarra & Bella: The Elephant and Dog Who Became Best Friends | Paperback | 978-0-14-751063-1 | 2003 |
| Travels With Tarra | Hardcover | 978-0-88448-241-3 | 2002 |
Penguin · Penguin Putnam · Scribners · Tilbury House Publishers