Alvin Plantinga has made wide-ranging, vigorously discussed contributions to many topics in the philosophy of religion, the metaphysics of modality and associated issues in the philosophy of logic, and epistemology. In his "Plantinga on the Problem of Evil" in Alvin Plantinga (1985), edited by James E. Tomberlin and Peter van Inwagen, Robert Merrihew Adams of Yale University says that "No one has contributed more to the development of an analytical philosophy of religion than has Alvin Plantinga." Known for his technical expertise and high standards of precision, Plantinga's overarching career interest has been the defense of classical Christian belief in the light of contemporary intellectual concerns. He has offered a justification of the rationality of theistic belief on the basis of its isomorphism with the rationality of belief in other minds; a "Free Will Defense" meant to show that the existence of God is logically compatible with the existence...