Covers: Open Library
- ExpressionismNorbert Wolf, Norbert, Dr. Wolf
- Codices illustresIngo F. Walther, Norbert Wolf
- Painting of the Romantic EraNorbert Wolf
- Romanesque Art (Basic Art)Norbert Wolf
- Portraits (Basic Art)Roland Kanz, Norbert Wolf
- Codices IllustresIngo F. Walther, Norbert Wolf
- Diego VelazquezNorbert Wolf
- Caspar David FriedrichNorbert Wolf
- Ägyptische KunstRose-Marie Hagen, Rainer Hagen et al.
- RomantiekNorbert Wolf
- KirchnerNorbert Wolf
- Art romanNorbert Wolf
- Caspar David FriedrichNorbert Wolf
- Giotto Di Bodone: 1267-1337Norbert Wolf
- Expresionismo/expressionismNorbert Wolf
