Le Codex Huygens et la Théorie de l'art de Léonard de Vinci

Early Netherlandish painting, its origins and character

Gothic architecture and scholasticism

Studies in iconology

Meaning in the Visual Arts

Michelangelo's Design Principles, Particularly in Relation to Those of Raphael

Tomb sculpture

Die Gestaltungsprincipien Michelangelos, besonders in ihrem Verhältnis zu denen Raffaels

Renaissance and renascences in Western art

Idea

The life and art of Albrecht Durer.