Beginning with background and context of adoption, including sociocultural and political contexts, the handbook then addresses the diversity of adoptive families in terms of family forms, attitudes about adoption, and characteristics of adopted children. Next, research examining the lived experience of adoption for birth parents, adoptive parents, and adopted individuals is presented. A variety of outcomes for internationally and domestically adopted children and adoptive families is then discussed and the handbook concludes by addressing the development, training, and implementation of adoption competent clinical practice. With cutting-edge research from top international scholars in a diversity of fields, should be considered essential reading for students, researchers, and practitioners across the fields of social work, sociology, psychology, medicine, family science, education, and demography. Interviews with chapter authors can be accessed as podcasts (https://anchor.fm/emily-helder) or as videos (https://bit.ly/2FIoi0a).