Os, Foreword. Introduction. PartI: Research and Theoretical Perspectives. Bentall, The Environment and Psychosis: Rethinking the Evidence. Read, Rudegeair, Farrelly, The Relationship Between Child Abuse and Psychosis: Public Opinion, Evidence, Pathways and Implications. Bendall, McGorry, Krstev, The Trauma of Being Psychotic: An Analysis of Posttraumatic Stress Disorder in Response to Acute Psychosis. Jankowski, Mueser, Rosenberg, Psychosis with Comorbid PTSD. Fowler, Freeman, Steel, Hardy, Smith, Hackman, Kuipers, Garety, Bebbington, The Catastrophic Interaction Hypothesis: How do Stress, Trauma, Emotion and Information Processing Abnormalities Lead to Psychosis? Part II: Specific Populations. Jackson, Birchwood, Trauma and First Episode Psychosis. Hammersley, Fox, Childhood Trauma and Psychosis in the Major Depressive Disorders. Romme, Escher, Trauma and Hearing Voices. Part III: From Theory to Therapy. Read, Breaking the Silence: Learning Why, When and How to Ask About Trauma, and How to Respond to Disclosures. Callcott, Turkington, CBT for Traumatic Psychosis. Smith, Steel, Rollinson, Freeman, Hardy, Kuipers, Bebbington, Garety, Fowler, The Importance of Traumatic Events in Formulation and Intervention in Cognitive Behavioural Therapy for Psychosis: Three Case Examples. Larkin, Morrison, Relationships Between Trauma and Psychosis: From Theory to Therapy. Gumley, MacBeth, A Trauma Based Model of Relapse in Psychosis.