Managing Migration in Italy and the United States shows how the development of gatekeeping in the United States and Italy laid the groundwork for immigration restriction worldwide at the turn of the twentieth century. The volume brings together European and American scholars, many for the first time, effectively crossing national and disciplinary boundaries. Using archives on both sides of the Atlantic, the authors explore the rise of immigration restriction and the attendant growth of the bureaucracy to regulate migration through the lens of migration studies, transnational history, and diplomatic and international history. The essays contribute to recent scholarship on the global repercussions of immigration restriction and the complex web of interactions created by limits on mobility. Managing Migration brings to light Italy’s important role in the establishment of international border controls promoted by the United States and expands the chronology of restriction from its origins to the present.