Few figures in church history have been so much loved or hated, admired or despised as John Calvin. Calvinism—the theological orientation bearing the French theologian’s name—has also had mixed reception. Reformed theologian Oliver Crisp, professor of systematic theology at Fuller Theological Seminary, says Calvinism and the Reformed tradition is more diverse and amiable than is often thought. CT assistant online editor Kevin P. Emmert talked with Crisp about his new book, Deviant Calvinism: Broadening Reformed Theology (Fortress Press), and the landscape of Reformed theology.