MerryMakers · Ravensburger Buchverlag · Sauerländer · Schmid F. X. · Scholastic
| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Alle lieben Knut | 978-3-89782-321-1 | 2008 | Juliana Hatkoff · Craig Hatkoff | |
| Best Friends | 978-0-439-92872-4 | 2007 | Craig Hatkoff and Dr. Paula Kahumbu | |
| How One Little Polar Bear Captivated The World | 978-0-545-04716-6 | 2007 | Craig Hatkoff · Juliana Hatkoff · Dr. Gerald R. Uhlich | |
| Kleines Nilpferd - große Freundschaft: Eine wahre Freundschaft | 978-3-7941-9119-2 | 2007 | Craig Hatkoff · Paula Kahumbu | |
| Knut, der kleine Eisbärenjunge | 978-3-473-55216-0 | 2007 | Juliana Hatkoff · Craig Hatkoff · Gerald R. Uhlich | |
| Knut: La historia del osito polar que cautivo al mundo entero/ The Story of a Little Polar Bear That Captivated the World | 978-0-545-05658-8 | 2007 | Juliana Hatkoff · Craig Hatkoff | |
| Knut: L'ourson polaire qui captiva le monde | 978-0-545-99216-9 | 2008 | Dr Gerald R Uhlich · Craig Hatkoff · Juliana Hatkoff | |
| Knut The Baby Polar Bear | 978-0-545-06157-5 | 2008 | Juliana Hatkoff | |
| Looking For Miza | 978-0-545-08540-3 | 2008 | Juliana Hatkoff · Craig Hatkoff · Paula Kahumbu | |
| Owen & Mzee Doll Set | 978-1-57982-214-9 | 2007 | Craig Hatkoff | |
| Owen & Mzee: Language Of Friendship | 978-0-439-89959-8 | 2007 | Craig Hatkoff and Dr. Paula Kahumbu | |
| Owen & Mzee: The True Story of a Remarkable Friendship | 978-0-439-82973-1 | 2006 | Craig Hatkoff · Paula Kahumbu | |
| Owen and Mzee: A Day Together | 978-0-545-03766-2 | 2008 | Craig Hatkoff | |
| Winter's Tail: How One Little Dolphin Learned To Swim Again | 978-0-545-12335-8 | 2009 | Juliana Hatkoff · Craig Hatkoff |