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.