Adding to the growing literature on shared formulation, the authors provide over two decades of practice-based evidence for the use of a Shared Assessment, Formulation and Education (SAFE) approach to working with those with complex mental health and behavioural needs. The SAFE approach offers an evidence-informed framework for multidisciplinary teams to address the needs of those with complex and enduring psychosis for whom current evidence-based interventions are ineffective in promoting their recovery. Drawing from richly detailed case studies, the authors provide a range of useful tools and fomulation templates for use by clinicans and professionals alike. They put forward a shared language to promote a multidisciplinary understanding of service users' complex needs and a means of organising treatment into a focused, realistic and targeted approach aimed at reducing barriers to recovery and allowing individuals to lead personally meaningful lives. The book focuses predominantly on the treatment of those with psychosis who require bespoke, multi-theory informed care. This work will be an invaluable resource to professionals working with this client group, including clinical and counselling psychologists, psychiatrists and other allied health professionals.