| series | Owned | Total | Total Owned |
|---|---|---|---|
| Discworld | 29 | 41 | 70.73 |
| The Science of Discworld | 0 | 4 | 0.00 |
| Discworld Picture Books | 1 | 2 | 50.00 |
| Discworld Non-Fiction | 2 | 25 | 8.00 |
| Bromeliad Trilogy | 0 | 3 | 0.00 |
| Johnny Maxwell | 2 | 3 | 66.67 |
| Long Earth | 3 | 5 | 60.00 |
| Standalone Novels | 2 | 6 | 33.33 |
| Short Stories | 0 | 1 | 0.00 |
| Short Story Collections | 0 | 5 | 0.00 |
| Non-Fiction | 1 | 4 | 25.00 |