| title | media type | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|---|
| Penelope and the Humongous Burp | Paperback | 978-1-897073-33-9 | 2005 | |
| Penelope and the Humongous Burp | Hardcover | 978-1-894222-83-9 | 2004 | Christine Tripp |
| Penelope and the Monsters | Paperback | 978-1-897073-49-0 | 2006 | |
| Penelope and the Monsters | Hardcover | 978-1-894222-94-5 | 2005 | Christine Tripp |
| Penelope and the Preposterous Birthday Party | " | 978-1-897550-00-7 | 2009 | |
| Penelope and the Preposterous Birthday Party | Paperback | 978-1-897550-24-3 | 2009 | |