| title | media type | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|---|
| Big Smelly Bear | Paperback | 978-0-545-07686-9 (0-545-07686-2) | 2008 |
| Big Smelly Bear | Audio CD | 978-0-545-07535-0 (0-545-07535-1) | 2007 |
| How Big Is the World? | Hardcover | 978-1-905417-50-6 (1-905417-50-0) | 2007 |