| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Mark Zilis' Field Guide to Hostas | 978-0-9679440-2-9 (0-9679440-2-3) | 2014 |
| The Hosta Handbook | 978-0-9679440-0-5 (0-9679440-0-7) | 2001 |
| The Hostapedia: An Encyclopedia of Hostas | 978-0-9679440-1-2 (0-9679440-1-5) | 2009 |