Book excerpt: Immigrant children and youth are the fastest-growing segment of the U.S. population, and so their prospects bear heavily on the well-being of the country. Children of Immigrants represents some of the very best and most extensive research efforts to date on the circumstances, health, and development of children in immigrant families and the delivery of health and social services to these children and their families. This book presents new, detailed analyses of more than a dozen existing datasets that constitute a large share of the national system for monitoring the health and well-being of the U.S. population. Prior to these new analyses, few of these datasets had been used to assess the circumstances of children in immigrant families. The analyses enormously expand the available knowledge about the physical and mental health status and risk behaviors, educational experiences and outcomes, and socioeconomic and demographic circumstances of first- and second-generation immigrant children, compared with children with U.S.-born parents.