The success and well-being of immigrant youth has become a global concern for many stakeholders at multiple levels, including individuals, families, schools, neighborhoods, local and national economies and governments, and international relations. Millions of young people live and grow up in countries where they or their parents were not born, often as a result of families moving to find a better life or fleeing disastrous circumstances. Consequently, ethno-cultural diversity is rapidly becoming the rule rather than the exception in many nation states and communities of the world, particularly in wealthier host nations. As noted by Hernandez in Chapter 1 on the demography of immigration, immigrants represent the fastest growing segment of the population in many affluent countries. Consequently, the economic and social future of multiple nations is highly dependent on the success of immigrant children and youth. Moreover, immigrant families are transforming the neighborhoods and societies in which they settle. Recent migration has brought immense changes, challenges, and opportunities to host and sending nations, as well as the individuals and families who migrate. This volume is based on the Jacobs Foundation Conference,“Capitalizing on Migration: The Potential of Immigrant Youth,” held at Schloss Marbach, in Germany, on 22-24 April, 2009. The Jacobs Foundation, which is strongly committed to the support of science, practice, and policy pertaining to productive youth development, sponsored this conference in response to growing international interest in migration and the well-being of immigrant youth. Leading international scholars in demography, human development, economics, social psychology, education, immigrant mental health, and sociology gathered to address urgent questions about