Clinician's Handbook for Obsessive Compulsive DisorderIt 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