Psychology bookshelves are filled with texts on different theories of how to do therapy and why one specific theory will work better than all the others. Yet the fact is research proves over and over again that all theories can work under the right conditions. This book takes a unique look at the specifics of those conditions that are facilitative to all forms of therapy, and how they are identified in different theories. The diverse experiences and viewpoints of an American humanistic therapist and a British psychodynamic therapist are brought together to explore the essential conditions needed for therapy to succeed. Extensive use of first-hand examples and thorough academic support combine to create vivid text, a sound theoretical base and practical therapeutic applications. The opening chapters draw on substantial research evidence which suggests that all theoretical approaches are equally effective in the hands of good therapists. It proposes that an important factor contributing to this effectiveness is the environment in which therapy is practised. Three central chapters give in-depth explorations of the unique ways in which the broad theoretical orientations of Psychodynamic, Existential-Humanistic, and Cognitive-Behavioural deal with the philosophy, labelling, function, perspective and implementation of a facilitative environment. A concluding chapter synthesizes information from these diverse orientations to identify core commonalities and critical differences between how therapists from different theoretical persuasions develop common understandings, maintain working client relationships and regulate their personal involvement in therapy.