| title | ISBN-13 | year of publication |
|---|---|---|
| Critters of Illinois Pocket Guide | 978-1-885061-27-0 | 2001 |
| Critters of Maine Pocket Guide | 978-1-885061-49-2 | 2002 |
| Critters of Michigan Pocket Guide | 978-1-885061-81-2 | 2000 |
| Critters of New York Pocket Guide | 978-1-59193-103-4 | 2005 |