| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1989 | 978-0-943563-00-8 | A New Tree Biology | |
| '' | 978-0-943563-02-2 | Alex L. Shigo | New Tree Health |
| '' | 978-0-943563-08-4 | Alex L. Shigo | Tree Pruning: A Worldwide Photo Guide |
| 1991 | 978-0-943563-09-1 | '' | Modern Arboriculture: A Systems Approach to the Care of Trees and Their Associates |
| 1989 | 978-0-943563-12-1 | '' | A New Tree Biology: Facts, Photos, and Philosophies on Trees and Their Problems and Proper Care |