1. The most recent book added to the TBR

2. The longest book on the TBR

3. The shortest book on the TBR

4. A TBR book from your favourite genre

5. A book on the TBR you started but haven't finished

6. A non-fiction book

7. A hardback book on your TBR

8. A TBR book that the Internet made you buy

9. A TBR book that is not in your preferred genre

10. Free choice