| Collection | Unique Books |
| Agriculture | 67 |
| Bees | 10 |
| Biodynamics | 16 |
| Biotechnology | 27 |
| Botany | 7 |
| Children & Education | 18 |
| Conferences | 176 |
| Conservation | 23 |
| Craft | 3 |
| Crops | 34 |
| Design And Construction | 15 |
| Directory | 6 |
| Economics | 29 |
| Energy | 3 |
| Farming | 95 |
| Forestry | 14 |
| Fruit | 48 |
| Gardening | 122 |
| General | 20 |
| Greenhouse | 14 |
| Health & Nutrition | 75 |
| Herbs | 23 |
| Livestock | 99 |
| Market Gardening | 18 |
| Marketing | 26 |
| Ornamentals | 51 |
| Permaculture | 16 |
| Pest Management | 53 |
| Philosophy | 12 |
| Seeds & Propagation | 37 |
| Soil | 136 |
| Sustainability | 50 |
| Vegetables | 48 |
| Weeds | 24 |
| Wildlife | 11 |
| Number of collections: 35 | |
| Total number of unique books: 1426 | |