| Author | Titles | | 1.
| Valadas, Cristina, 1965- | 15 | | 2.
| Valadas, Jorge Faro | 1 | | 3.
| Valadas, Nuno | 3 | | 4.
| Valade, Daniel J. | 1 | | 5.
| Valadés Sierra, Juan Manuel | 6 | | 6.
| Valadon, Suzanne, 1865-1938 | 1 | | 7.
| Valador, Francisco | 1 | | 8.
| Valahu, Mugur | 1 | | 9.
| Valamatos, Manuel Jorge | 4 | | 10.
| Valandro, Leonel | 18 |
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