Book excerpt: Featuring essays by world-renowned scholars, Diasporas charts the various ways in which global population movements and associated social, political and cultural issues have been seen through the lens of diaspora. Wide-ranging and interdisciplinary, this collection considers critical concepts shaping the field, such as migration, ethnicity, post-colonialism and cosmopolitanism. It also examines key intersecting agendas and themes, including political economy, security, race, gender, and material and electronic culture. Original case studies of contemporary as well as classical diasporas are featured, mapping new directions in research and testing the usefulness of diaspora for analyzing the complexity of transnational lives today. Diasporas is an essential text for anyone studying, working or interested in this increasingly vital subject.