This title is the latest in our 'Developments in Psychoanalysis' series, which has included Taboo or not Taboo? Forbidden Thoughts, Forbidden Acts in Psychoanalysis and Psychotherapy, The Significance of Dreams: Bridging Clinical and Extraclinical Research in Psychoanalysis and Mentalizing in Child Therapy: Guidelines for Clinical Practitioners. The author is a training and supervising analyst for the Italian Psychoanalytical Association and for the Argentine Psychoanalytic Association, and is Professor of Psychology of Health at the Roma 3 University. His previous works have included Psychoanalysis: From Practice to Theory and Putting Theory to Work: How are Theories Actually Used in Practice?