Brettell's new book provides new insight into the processes of migration and transnationalism from an anthropological perspective. It has been estimated at the turn of the millennium that 160 million people are living outside of their country of birth or citizenship. The author analyzes macro and micro approaches to migration theory, utilizing her extensive fieldwork in Portugal as well as research in Germany, Brazil, France, the United States and Canada. Key issues she discusses include: the value of immigrant incorporation vs. assimilation models; the impacts on individual, household and community as well as institutions and states; the role of ethnicity and ethnic groups; the effects of clandestine or illegal immigration; the differing commitments to host vs. sending communities; the shift from city enclaves to suburban areas; the constraints and opportunities that lead to ethnic entrepreneurship; the role of religion in transnational linkages; and the differing experiences of men and women as migrants. Brettell also explores the relevance of life histories and oral narratives in understanding the immigration process and the mediation of boundaries in a new society. This book provides a fresh perspective on the contemporary experience of migration and will be indispensable to instructors and researchers in anthropology, race and ethnic studies, immigration studies, urban studies, sociology, and international relations.