Linked by a common geography and claim to the true religion, Christians and Muslims had a long history of interreligious discourse up to the Crusades. These faith communities composed texts in the form of dialogues in light of their encounters with one another. This book surveys the development of the genre and how dialogues determined the patterns of conversation. Each chapter highlights a thematic feature of the literary form, demonstrating that Christian and Muslim authors did not part ways in the first century of Islamic rule, but rather continued a dialogue commending God’s faithful believers.