- Love, Friendship, Beauty, and the Good: Plato, Aristotle, and the Later Tradition
- Reading Plotinus: A Practical Introduction to Neoplatonism (History of Philosophy) (Purdue University Press Series in the History of Philosophy)
- Plato's Parmenides and Its Heritage: History and Interpretation from the Old Academy to Later Platonism and Gnosticism
- Plato's Dialectic at Play: Argument, Structure, And Myth in the Symposium
- Plato's Parmenides and Its Heritage: Volume I: History and Interpretation from the Old Academy to Later Platonism and Gnosticism (Society of Biblical ... from the Greco-Roman World Supplement)