This book is about the "public realm," defined as a particular kind of social territory that is found almost exclusively in large settlements. This particular form of social-psychological space comes into being whenever a piece of actual physical space is dominated by relationships between and among persons who are strangers to one another, as often occurs in urban bars, buses, plazas, parks, coffee houses, streets, and so forth. More specifically, the book is about the social life that occurs in such social-psychological spaces (the normative patterns and principles that shape it, the relationships that characterize it, the aesthetic and interactional pleasures that enliven it) and the forces (anti-urbanism, privatism, post-war planning and architecture) that threaten it. The data upon which the book''s analysis is based are diverse: direct observation; interviews; contemporary photographs, historic etchings, prints and photographs, and historical maps; histories of specific urban
