Brettell's new book provides new insight into the processes of migration and transnationalism from an anthropological perspective. She analyzes macro and micro approaches to migration theory, utilizing her extensive fieldwork in Portugal and many other countries. Key issues she discusses include: immigrant incorporation vs. assimilation models, the impacts on individual, household and community as well as institutions and states, ethnic group composition, illegal immigration, city vs. suburban enclaves, ethnic entrepreneurship, the role of religion, men and women as migrants, and the use of oral histories in understanding immigration and the mediation of new social boundaries. This book will be indispensable to instructors and researchers in anthropology, race and ethnic studies, immigration studies, urban studies, sociology, and international relations.