>
| Nom de la collection | Nb de livres références |
|---|---|
| Agatha Christie | 2 |
| Harper Collins Poche | 42 |
| Harper Collins Poche Document | 4 |
| Harper entertainment | 3 |
| Harper Poche Romance | 1 |
| HarperCollins | 8 |
| Harpercollins | 91 |
| Harpercollins children's fiction | 1 |
| Harpercollins entertainment | 1 |
| HarperCollins Poche. Noir | 1 |
| Harpertrophy | 1 |
| Mosaïc | 5 |
| Poche Noir | 12 |
| Poche Romance | 7 |
| The nightmare room | 1 |
| Travel guide | 1 |