| Author | Titles | | 1.
| Zilhão, João, 1957- | 5 | | 2.
| Zilhão, José Carlos Teiga | 2 | | 3.
| Zilhão, José Manuel F. M. Galhardo | 1 | | 4.
| Zilio, Carlos | 4 | | 5.
| Zilio, Carlos, 1944- | 2 | | 6.
| Zilk, Helmut | 1 | | 7.
| Zille, Heinrich, 1858-1929 | 1 | | 8.
| Zilli, Nora | 1 | | 9.
| Ziloty, Alexandre | 1 | | 10.
| Zils, Michael | 1 |
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