| Author | Titles | | 1.
| Rotunda Gallery (Londres, Grã-Bretanha) | 1 | | 2.
| Rötzer, Florian | 3 | | 3.
| Rotzler, Willy | 9 | | 4.
| Rouach, David | 1 | | 5.
| Rouaix, Paul | 1 | | 6.
| Roualt, Jean-Baptiste | 1 | | 7.
| Rouam, J. | 1 | | 8.
| Rouan, François, 1943- | 3 | | 9.
| Rouanet, Léo | 1 | | 10.
| Rouanet, Maria Helena | 1 |
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