The current article provides a review of adoption research since its inception as a field of study. Three historical trends in adoption research are identified: the first focusing on risk in adoption and identifying adoptee-nonadoptee differences in adjustment; the second examining the capacity of adopted children to recover from early adversity; and the third focusing on biological, psychosocial, and contextual factors and processes underlying variability in adopted children's adjustment. Suggestions for future areas of empirical investigation are offered, with an emphasis on the need to integrate research, policy, and practice.