Launched in 1971, Adolescent Psychiatry, in the words of founding coeditors Sherman C. Feinstein, Peter L. Giovacchini, and Arthur A. Miller, promised "to explore adolescence as a process . . . to enter challenging and exciting areas that may have profound effects on our basic concepts." Further, they promised a "series that will provide a forum for the expression of ideas and problems that plague and excite so many of us working in this enigmatic but fascinating field." For over two decades, Adolescent Psychiatry has fulfilled this promise. The repository of a wealth of original studies by preeminent clinicians, developmental researchers, and social scientists specializing in this stage of life, the series has become an essential resource for all mental health practitioners working with youth. Volume 21 honors the memory of Richard C. Marohn, former editor of Adolescent Psychiatry, and Herman D. Staples, founding member of the American Society for Adolescent Psychiatry. It begins with a section of papers that ranges over important aspects of "Development and Psychopathology." Topics explored by the contributors include: adolescents and authority; adolescents and disaster; adolescent awareness of the past; adolescent daughters of divorce; parent loss; adolescent schizophrenia; and adolescent mood disorders. Sections on "Assessment," "Issues in Psychotherapy," and "Training" round out a balanced survey of the field that is true to the spirit of this distinguished series. Volume 21 will be rewarding reading for child and adolescent therapists and all students of early development.