This involving exposition of the 'dialogue' follows the model of Galileo, who wrote in 1629 his wonderful 'Dialogue Concerning the Two Chief World Systems.' In a conversation, with himself as Psychotherapy Supervisor, Chessick poses two figures, one a more advanced student who represents the psychodynamic orientation, and the other a beginner who seems more comfortable with an organic, neurologic orientation. Using this format, the interlocutor presents the author's point of view, that is, the basic fundamentals of psychoanalytic and psychodynamic psychotherapy from a clinical rather than a theoretical perspective, and answers questions at various levels of sophistication. He also discusses current issues, differences, and approaches as they relate to his theme. The bibliography is comprehensive and very useful, especially for students and researchers. This is a valuable book for those who wish to familiarize themselves with contemporary as well as classical theory. -- George H. Pollock, MD, PhD