| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Bellossom's Big Battle | 978-0-439-23400-9 (0-439-23400-X) | 2001 | |
| Psyduck Ducks Out | 978-0-439-20091-2 (0-439-20091-1) | 2000 | |
| Two of a Kind | 978-0-439-15431-4 (0-439-15431-6) | 2000 | Sarah Heller |
E.H. · E. Heller · S. E. · S H · S. Heller · Sarah E. Heller