| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Play It Again, Tom | 978-0-593-05944-9 (0-593-05944-1) | 2009 |
| Why Pandas Do Handstands... And Other Curious Truths About Animals | 978-0-593-05693-6 (0-593-05693-0) | 2006 |
| Why Pandas Do Handstands: And Other Curious Truths About Animals | 978-1-4165-3190-6 (1-4165-3190-4) | 2006 |