First published in 1994. This monograph proposes a scientific formulation of the art of psychotherapy. The recent recognition of this treatment process as a separate discipline makes imperative the understanding of its nature and the comprehension of those features common to all forms of psychotherapy, regardless of differences in technique or in school orientation. The book is divided into three sections: (1) Foundation deals with the relationship of psychotherapy to general biology, especially to growth and adaptation, and with the common features as well as the differences in the major approaches to psychotherapy; (2) Process presents a formulation of the essential phases and the dynamics of any psychotherapeutic relationship; and (3) Techniques presents some techniques which the authors have found useful in their own work as psychotherapists.