Drawing on unique data from the German Emigration and Remigration Panel Study (GERPS), the present book comprises empirical studies on various aspects of recent German emigrants’ transnational relationships to core family members, specifically intimate partners, parents, and children. Moreover, we reflect on conceptual and empirical challenges in previous work on transnational family relations, suggesting avenues for future research. We thereby aim to strengthen the integration of two closely related strands of social research – the sociologies of migration and families – and add an important new facet to the study of transnational families more generally.