| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Birds of Colorado | 978-0-7627-7418-0 | 2012 | |
| Bugs & Slugs | 978-0-7627-8494-3 | 2014 | |
| Colorado Wildlife | 978-0-7627-8496-7 | 2014 | |
| Florida Seashore & Wildlife | 978-0-7627-8187-4 | 2014 | |
| Zinn & the Art of Road Bike Maintenance | 978-1-884737-70-1 | 2000 | Lennard Zinn |
| Zinn and the Art of Mountain Bike Maintenance, Third Edition | 978-1-884737-99-2 | 2001 | " |