Current therapeutic practice is grounded in traditional theories of psychotherapy, such as the theories that underlie cognitive-behavioural, psychodynamic and person-centred practice. But none of these approaches has been proven to be more effective than any other, leaving the therapist with an ethical and professional dilemma: how do you advocate and practise one theory with your clients, when a completely different theoretical approach is being successfully practised down the road?In this book Campbell Purton argues that psychotherapy and counselling theories fail to provide adequate justification for their practice. Part 1 highlights the weaknesses and dangers that underlie traditional counselling theories and their derivatives, including psychodynamic, cognitive behavioural, existential and neuroscience approaches. Having unpicked these theories, Part 2 goes on to develop an exciting new way of thinking about therapy that does not rely on theory - one that can be likened to a 'common sense' approach to therapeutic practice.This book poses important questions and offers unique insight for anyone studying or practising in the field of counselling and psychotherapy.