Muriel Prince Warren has written the definitive guide to treatment planning and strategies for change with adolescents and families. With sensitivity given to the influence of managed care, Dr. Warren offers specific ways that practitioners can work collaboratively to strengthen the therapeutic alliance, clarify objectives of treatment, become goal-oriented, and intervene through multiple pathways, all within a diagnostic framework. This is an important accomplishment given that clinicians must continually satisfy the requirements of third-party payers while maintaining their allegiances to adolescents and their families. This is collaboration at its best. I highly recommend this wonderful book to any practitioner or student who wants to have a better understanding of how to increase therapeutic effectiveness in ways that are respectful of clients' contributions to change.