- Leonardo da Vinci: Origins of a Genius
- Lorenzo Lotto: Rediscovered Master of the Renaissance
- Bellini, Giorgione, Titian, and the Renaissance of Venetian Painting (National Gallery Of Art, Washington)
- The Self-Help Paradox: Revolutionary Healing Through the Wisdom of a Course in Miracles
- Virtue & Beauty: Leonardo's Ginevra de' Benci and Renaissance Portraits of Women