The First Frontier: The Christian and Muslim War in Spain (in progress).

The Voice, The Word The Books. The Sacred Scriptures of the Jews, Christians and Muslims (Princeton University Press, 2008).

The Children op Abraham. A New Edition (Princeton University Press, 2006).

The Monotheists. Jews Christians and Muslims in Conflict and Competition (Princeton University Press, 2005).

Islam: A Guide for Jews and Christians (Princeton: Princeton University Press, 2003).

The Monotheists: Jews, Christians, and Muslims in Conflict and Competition, 2 vols. (Princeton: Princeton University Press, 2003).

Muhammad and the Origins of Islam (Albany: SUNY Press, 1994).

The Hajj: The Muslim Pilgrimage to Mecca and the Holy Places (Princeton: Princeton University Press, 1994).

Mecca and the Hijaz: A Literary History of the Muslim Holy Land (Princeton: Princeton University Press, 1994).

Judaism, Christianity, and Islam: The Classical Texts and Their Interpretations, 3 vols. (Princeton: Princeton University Press).

Jerusalem and Mecca: The Typology of the Holy City in the Near East (New York: New York University Press, 1987).

Jerusalem: Holy City in the Eyes of Chroniclers, Visitors, Pilgrims, and Prophets from the Days of Abraham to the Beginnings of Modern Times (Princeton: Princeton University Press, 1985).