Prophet or messiah, the figure of Jesus serves as both the bridge and the barrier between Christianity and Islam. In this accessible and revelatory book, Muslim scholar and popular commentator Mona Siddiqui explores the theological links between the two religions, showing how Islamic thought has approached and responded to Jesus and Christological themes from its earliest days to modern times. The author finds that the philosophical overlap between the two religions is greater than previously imagined, and this being so, her book brings with it the hope of improving interfaith communication and understanding. Through a careful analysis of selected works by major Christian and Muslim theologians during the formative, medieval, and modern periods of both religions, Siddiqui focuses on themes including revelation, prophesy, salvation, redemption, grace, sin, eschatology, law, and love. How did some become the defining characteristics of one faith and not the other? Which—and why—do some translate between the two religions? With a nuanced and carefully considered analysis of critical doctrines of Christianity and Islam, the author provides a refreshing counterpoint to contemporary polemical arguments and makes an important contribution to reasoned interfaith conversation.