The authors outline a fresh and creative perspective on cognitive therapy for OCD, derived from the development and testing of their Inference-Based Approach (IBA). This makes an important contribution by addressing components neglected or omitted in earlier approaches - a must read for anybody involved in the treatment of OCD. -- Jan van Niekerk , Clinical Psychologist, Fulbourn Hospital, Cambridge, UK It is refreshing to have a new approach to therapy for OCD explained so clearly, with due regard to the theoretical subtlety of the Inference-Based Approach (IBA) approach. This book is a game-changer in this area of work and is a model of what careful research and evaluation can yield. -- Richard S. Hallam , Visiting Professor of Clinical Psychology, University of Greenwich, UK The Inference-Based Approach (IBA) to the treatment of Obsessive-Compulsive Disorders presents a new and useful way to provide an evidence-based intervention for OCD. This approach is compatible with standard cognitive-behaviour therapy, but it adds a fresh perspective with new emphases for clinicians and clients alike. You will no doubt find it to be most interesting, and highly useful.

-- Adam S. Radomsky , Associate Professor of Psychology, Concordia University, Canada The Inference-Based Approach (IBA) has transformed the treatment of OCD in my private practice. This finely detailed treatment manual will now give clinicians - and their clients - access to the most innovative horizons of OCD clinical research and practice. -- Bob Safion , LMHC Private Practitioner, Anxiety Treatments, Massachusetts, USA Building on a solid empirical and philosophical foundation, O'Connor and Aardema have written the definitive, practical guide to inference-based therapy for OCD for the practicing clinician that the field has been waiting for. -- Gary Brown , Research Director and Doctor in Clinical Psychology, Royal Holloway University of London, UK This is an excellent handbook on the Inference-Based Approach, the most viable and promising approach to OCD of the past ten years. Based on firm research, the book is highly practical. The authors provide clear guidelines as to how therapists should deal with the underlying thoughts of OCD patients. A must for clinicians and students.

-- Paul Emmelkamp , Academy Professor, University of Amsterdam, Netherlands.