Today the importance of early detection and intervention for psychosis is clearly recognized by researchers, clinicians and policy makers alike. Ethical dilemmas associated with preventative approaches have led to the development of a range of psychological interventions that are likely to be more acceptable to service users and their families. 'Working with People at High Risk of Developing Psychosis' is unique in that it focuses on the needs of those in the pre-psychotic phase of the illness and the specific challenges that working with this at risk´ group poses for the clinician. An international team of expert editors and contributors explore the identification of individuals at high risk of developing psychosis and provide an overview of many of the psychological treatment approaches. Key issues addressed include - detection strategies for finding cases at high-risk; - assessment and formulation; - selection of appropriate treatment targets; - intervention with attenuated symptoms and brief psychotic episodes; - stress management; - substance use; - working with families; - group therapy. This practical treatment handbook will be an invaluable resource for all qualified and trainee clinicians working with at risk´ clients. It will also be of interest to academic psychologists and students of clinical psychology.