| title | ISBN-13 | year of publication |
|---|---|---|
| Chili Sortenlexikon: Deine besten Sorten zum eintragen | 978-1-0986-7588-2 | 2019 |
| variety Encyclopedia Chili: your personal notebook for your chili varieties | 978-1-0991-9255-5 | 2019 |
| variety Encyclopedia Fruit & Vegetable: your personal notebook for your Fruit & Vegetable varieties | 978-1-0991-9387-3 | 2019 |
| variety Encyclopedia Tomatoes: Notebook - your personal notebook for your tomato varieties | 978-1-0991-9110-7 | 2019 |