| Author | Titles | 1.
| Olinto, António | 1 | 2.
| Olinto, Lúcia | 1 | 3.
| Oliva, Achille Bonito, 1939- | 0 | 4.
| Author is: Bonito Oliva, Achille, 1939- | 42 | 5.
| Oliva, Alberto | 1 | 6.
| Oliva, Aline | 1 | 7.
| Oliva, Anne-Marie | 1 | 8.
| Oliva Creative Factory (S. João da Madeira, Portugal) | 11 | 9.
| Oliva, Edgar | 1 | 10.
| Oliva, Emilia | 1 | 11.
| Oliva, Fernando | 5 |
|
|