The aim of the book is to demonstrate the practical significance of Bowlby's attachment theory. It explains the fundamentals of attachment theory, provides a well-founded insight into the various diagnostic methods of attachment theory, and discusses the practice of attachment-based interventions for children with behavioral issues. In the introductory part of the volume, the authors address the connection between attachment and experiences of family violence, loss, and neglect, and explain the consequences of insecure attachment quality. The second part offers an overview of the most prominent diagnostic methods of attachment theory. The third focus of the book is on the interventions that can be derived from attachment theory for at-risk children or for children with already manifest behavioral disorders. One focus of these interventions is on the parents.