Childhood anxiety, obsessive-compulsive disorder (OCD) and post-traumatic stress disorder (PTSD) represent some of the most common mental health disorders affecting young people, often leading to major life impairments. This book brings together the world's leaders in treatment science to provide evidence-based psychosocial interventions for these disorders. It supplies practitioners and researchers with innovations in clinical science, highlighting advances in technology and neuroscientific discovery which have informed the development of these novel treatment advances. The authors tackle the two main challenges facing the field of childhood psychopathology: improving access to evidence-based cognitive behavioural therapy (CBT) through innovations in treatment delivery, and increasing the positive outcomes for youth through unique therapies. Any reader who wants to be informed on the latest approaches to cognitive and behavioural interventions and how to apply them will benefit from this book.