K.k. ยท K. Kaufmann
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| Colorful Fun Day | Hardcover | 978-1-4127-3709-8 (1-4127-3709-5) | 2005 |
| Potty Time with Elmo | Board book | 978-1-4127-8750-5 (1-4127-8750-5) | 2007 |
| Potty Time with Elmo | Toy | 978-1-4127-3486-8 (1-4127-3486-X) |