In the history of Christian-Jewish interactions in the Latin West, the 11th and 12th centuries are known for their rich production of Christian literary dialogues. Works of this genre present a conversation between a Jewish and a Christian figure about the Christian faith. While these exchanges may be based on real conversations, they are fundamentally fictional scenarios invented by their Christian authors. They serve primarily to refute Jewish criticisms of Christianity, to polemicize against Judaism, and thus to emphasize Christianity as the only true religion. Such dialogues leverage invented conversations to present a Christian self-understanding in the face of and by using the Jewish other. In this sense, they can be perceived as artifacts of religious co-production.