The essays in this collection present research on national, class, and gender identities in the Baltic Sea Region and Eastern Europe being conducted by researchers based at the Institute of Contemporary History, Södertörn University, Stockholm. The contributors focus on transnational flow as they explore Danish, Estonian, Finnish, German, Lithuanian, Moldovan, Polish, Russian, and Swedish instances, and the region at large. The studies examine fluid identities in a historical perspective and show how notions of identity have been naturalised in specific contexts. This book is issued in conjunction with the fifteenth anniversary of the Swedish Institute of Contemporary History. By bringing to the public the most current findings in Baltic and East European studies and offering an overview of work done by the institute’s researchers, it hopes to demonstrate the fruitfulness of opening contemporary history to broader regional and transnational approaches. Dr Norbert Götz is professor of history at the Institute of Contemporary History, Södertörn University, Sweden.