This collection of essays explores the complex relations between Christians and Muslims at the dawn of the modern age. It begins by examining two seminal works by Nicholas of Cusa: De pace fidei, a dialogue seeking peace among world religions written after the conquest of Constantinople in 1453, and Cribratio Alkorani (1460-61), an attempt to confirm Gospel truths through a critical reading of the Qur’an. After considering Nicholas, his sources, and his context, the book explores a wider range of late medieval texts on Christian-Muslim relations—not only Christian writings about Islam but also Muslim responses to Christianity. The book’s focus is historical, but it can also contribute to efforts at increasing Muslim-Christian understanding today.