| Author | Titles | | 1.
| Otagiri, Jin, 1978- | 1 | | 2.
| Otaka, Yasujiro | 1 | | 3.
| Otal Benedé, Blanca | 1 | | 4.
| Oteiza, Jorge, 1908-2003 | 3 | | 5.
| Otero, Agustina, 1960- | 1 | | 6.
| Otero, Alberto | 1 | | 7.
| Otero, Alejandro, 1921- | 1 | | 8.
| Otero, Andrés | 1 | | 9.
| Otero, Angel, 1981- | 1 | | 10.
| Otero, Aurora | 1 |
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