For the first time this book provides a comprehensive diagnostic for all different methods in psychotherapy. Because of the individual approaches and structures this could not be realized until know. Experts of seventeen schools-of-thought came together at a round table and drew up guidelines for the daily work of psychotherapists. The result is documented in this book, containing a summary of relevant standard questions; it also includes methodological commentaries for practical implementation. Despite the individual approach of the different types of psychotherapies, this psychotherapeutic diagnostic is applicable for all psychotherapists. The diagnostic has been ruled upon by the Austrian Federal Ministry of Health and Women and has been submitted to the WHO.