Augustine's City of God has profoundly influenced the course of Western political philosophy, but there are few guides to its labyrinthine argumentation that hold together the delicate interplay of religion and philosophy in Augustine's thought. The essays in this volume offer a rich examination of those themes, using the central, contested distinction between a heavenly city on earthly pilgrimage and an earthly city bound for perdition to elaborate aspects of Augustine's political and moral vision. Topics discussed include Augustine's notion of the secular, his critique of pagan virtue, his departure from classical eudaimonism, his mythology of sin, his dystopian politics, his surprising attention to female bodies, his moral psychology, his valorisation of love, his critique of empire and his conception of a Christian philosophy. Together the essays advance our understanding of Augustine's most influential work and provide a rich overview of Augustinian political theology and its philosophical implications.