| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Agates of Lake Superior Playing Cards | 978-1-59193-323-6 | 2011 | Bob Lynch |
| Agates of Lake Superior: Stunning Varieties and How They Are Formed | 978-1-59193-303-8 | 2011 | |
| Arizona Rocks & Minerals: A Field Guide to the Grand Canyon State | 978-1-59193-237-6 | 2010 | Bob Lynch |
| Colorado Rocks & Minerals: A Field Guide to the Centennial State | 978-1-59193-238-3 | 2010 | " |
| Lake Superior Rocks & Minerals | 978-1-59193-095-2 | 2008 | " |
| Michigan Rocks & Minerals: A Field Guide to the Great Lake State | 978-1-59193-239-0 | 2010 | " |
| Rocks & Minerals Playing Cards | 978-1-59193-313-7 | 2010 | |