Alasdair MacIntyre is Senior Research Fellow at the Center for Contemporary Aristotelian Studies in Ethics and Politics at London Metropolitan University and Rev John A. O'Brien Senior Research Emeritus Professor of Philosophy at the University of Notre Dame. He is the author of numerous books, including After Virtue: A Study in Moral Theory, A Short History of Ethics, and Three Rival Versions of Moral Enquiry: Encyclopaedia, Genealogy, and Tradition, all published by the University of Notre Dame Press.