In this compelling book, prominent investigators Mario Mikulincer and Phillip R. Shaver review the state of the science of attachment-based interventions in psychotherapy and beyond. They critically evaluate a range of programs that aim to strengthen parent–child, couple, and therapist–client relationships. The theoretical and empirical underpinnings of each intervention are examined, as are specific techniques used to enhance felt security and foster personal growth. The book also looks at evidence-based interventions outside the mental health domain, including programs that target teacher–student relationships and academic performance. Looking to the future, the authors discuss emerging applications of attachment theory in medicine and health care, management and organizational behavior, and group and intergroup processes.