ABSTRACT
Understanding the nature of psychotherapy is a daunting task. There are over 250 distinct psychotherapeutic approaches, which are described, in one way or another, in over 10,000 books. Moreover, tens of thousands of books, book chapters, and journal articles have reported research conducted to understand psychotherapy and to test whether it works. It is no wonder, that faced with the literature on psychotherapy, confusion reigns, controversy flourishes, converging evidence is sparse, and recognition of psychotherapy as a science is tenuous.
