Beginning with a review of development through adolescence into adulthood, and the principles of CBT, the book highlights problems with traditional models of CBT for adolescents and young adults. In a fresh approach, this book separates CBT from diagnosis and grounds it instead in emotion science. Adolescents and young adults learn not about disorders and symptoms, but about emotions, emotional ‘traps’, and how they can use CBT to bring about change. There are chapters on fear, sadness, anger, emotion dysregulation, and happiness. Each chapter provides an outline of emotion science, a clear cognitive behavioural formulation (‘trap’), and evidence-based interventions. Clinicians are walked through the process using case illustrations. Cognitive Behavioural Therapy for Adolescents and Young Adults represents a transformation of CBT practice, and will become a valuable treatment manual to training and practising mental health professionals, especially psychotherapists specialising in CBT.