This book is the second in an annual series: the first was dedicated to the late Asya Kadis, long-time director of the Group Therapy Department, Postgraduate Center for Mental Health. The present collection is dedicated to Nathan Ackerman. Ten of the eighteen papers deal with family therapy; these comprise a well-chosen selection of thoughtful contributions, opening with Donald Bloch's sensitive observations on Ackerman's first paper devoted to the family. In a theoretical contribution, Ravich traces the development of the concept of