| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| The Book of Poo: A Spotter's Guide | Hardcover | 978-0-09-191782-1 (0-09-191782-4) | 2007 | Josh Richman |
| What's Your Poo Telling You? | Paperback | 978-0-09-195870-1 (0-09-195870-9) | 2014 | |
| What's Your Poo Telling You? | Hardcover | 978-0-09-195555-7 (0-09-195555-6) | 2013 | |