Since its initial publication in 1965, The Secular City has been hailed as a classic for its nuanced exploration of the relationships among the rise of urban civilization, the decline of hierarchical, institutional religion, and the place of the secular within society. Now, half a century later, this international best seller remains as relevant as when it first appeared. The book's arguments--that secularity has a positive effect on institutions, that the city can be a space where people of all faiths fulfill their potential, and that God is present in both the secular and formal religious realms--still resonate with readers of all backgrounds. For this brand-new edition, Harvey Cox provides a substantial and updated introduction. He reflects on the book's initial stunning success in an age of political and religious upheaval and makes the case for its enduring relevance at a time when the debates that The Secular City helped ignite have caught fire once again.