| Clue | Source | Date |
|---|---|---|
| Protective cover for a book that leaves only the spine exposed (8) | ||
| Investigation after error where books are kept | The Guardian Cryptic | 26 Mar 2024 |
| Investigation after error where books are kept (8) | ||
| Box for a book trilogy, say | Wall Street Journal | 21 Oct 2021 |
| Five-sided cardboard box | Newsday | 18 Apr 2020 |
| It holds a specific volume | ||
| Boxed-set box | ||
| Boxed-set box | ||
| Boxed-set box | ||
| Compact Oxford English Dictionary feature | ||
| Box for books | ||
| Bookshelf item | ||
| Boxed-set box | ||
| Book holder | ||
| Book-set container | ||
| Book holder |