Hermann Bauer received his doctorate in 1955 with a thesis on Rocaille. He has taught art history at Salzburg University and Munich University and has published numerous works on European art of the 16th and 17th centuries. Andreas Prater received his doctorate in 1974 on Michelangelo's Cappella Medicea at Salzburg University. Since 1994, Prater has been professor of art history at Freiburg University. Ingo F. Walther (1940-2007) was born in Berlin and studied medieval studies, literature, and art history in Frankfurt am Main and Munich. He published numerous books on the art of the Middle Ages and of the 19th and 20th centuries. Walther's many titles for TASCHEN include Vincent van Gogh, Pablo Picasso, Art of the 20th Century, and Codices illustres.