This volume coins the term “Team 10 East” as a conceptual tool to discuss the work of Team 10 members and fellow travelers from state-socialist countries—such as Oskar Hansen of Poland, Charles Polónyi of Hungary, and Radovan Nikšic of Yugoslavia. This new term allows the book’s contributors to approach these individuals from a comparative perspective on socialist modernism in Central and Eastern Europe and to discuss the relationship between modernism and modernization across the Iron Curtain. In so doing, Team 10 East addresses “revisionism” in state-socialist architecture and politics as well as shows how Team 10 East architects appropriated, critiqued, and developed postwar modernist architecture and functionalist urbanism both from within and beyond the confines of a Europe split by the Cold War.