This book and this theory provide a comprehensive framework for understanding both infant/human development AND infant-parent relationships. More importantly, the book suggests what exactly it is that clinicians are or strive to be doing as they implement infant-parent psychotherapy and other infant mental health interventions with high risk families. This book brought together years of my own self-study in IMH, helping me develop an integrated framework for my work with families of young children. Actually, this framework impacts the work I do with people of all ages. It helps me define what clinical practice is.