- `We Have No King But Christ': Christian Political Thought in Greater Syria on the Eve of the Arab Conquest (C.400-585)
- The Fall of the Priests and the Rise of the Lawyers
- History Under The Influence: Governing On Drugs
- In Praise of Simplicity: A Memoir of Christian Service in Times of Peace and War in Africa
- The Imam of the Christians: The World of Dionysius of Tel-Mahre, C.750-850