As we have described, adopted children and their families represent a diverse population that has followed complex pathways to adoption. Part 1, “The Population,” presents information regarding the demographic and socio-economic characteristics of adopted children and families, as well as measures of child and family wellbeing. Part 2, “The Adoption Process,” presents information regarding parents’ motivation for adoption, satisfaction with their agency or attorney, openness of adoption (i.e., contact between adopted children and birth-family members), and post-adoption supports and services. The Chartbook presents findings for the population of adopted children as a whole and, where possible, comparable data for the entire population of U.S. children.v To illuminate some of the differences as well as some of the similarities among adopted children, we also present information separately by adoption type—children adopted from foster care, children adopted privately in the United States, and children adopted internationally. Respondents to the NSCH were adults in the household knowledgeable about the child’s health, and for the NSAP were adoptive parents. While these interviewees have intimate knowledge regarding their families, their responses were not independently verified and could be subject to recall errors or to other biases. Interested readers will find detailed tables in the Appendix to support the information described throughout the Chartbook.