Compact, authoritative guide to effective diagnosis and empirically supported treatments for autism spectrum disorder. This latest addition to the Advances in Psychotherapy–Evidence-Based Practice series is a straightforward yet authoritative guide to effective diagnosis and empirically supported treatments for autism spectrum disorder (ASD). The book starts by reviewing DSM-5 and ICD-10 diagnostic criteria, current theories and models, and prevalence rates for ASD and related neurodevelopmental disorders. It explains the differences between the disorders and changes in criteria and names (such as Asperger's syndrome, childhood and atypical autism, pervasive developmental disorder, Rett's syndrome) over time. It then provides clear guidance on evaluation of ASD and comorbidities, with practical outlines and examples to guide practice. The core of the book that follows is a clear description of current interventions and their empirical support, including psychosocial, pharmacological, educational, social skills, and complementary/alternative treatments. Clinical vignettes and marginal notes highlighting the key points help make it an easy-to-use resource, incorporating the latest scientific research, that is suitable for all mental health providers dealing with autism spectrum disorder.