The most effective treatments for child and adolescent psychopathology are often family-based, emphasising the active involvement of family members beyond the referred individual. This book details the clinical skills, knowledge, and attitudes that form the core competencies for the delivery of evidence-based family interventions for a range of mental health problems. Offering practical case studies to illustrate treatment principles, and discussing barriers to treatment and problem-solving in relation to common difficulties. Covers topics such as anxiety, attention-deficit hyperactivity disorder, sleep, and eating disorders. Therapist competencies are thoroughly examined, from the role they play in severe/complex cases and in achieving successful outcomes to commonly misunderstood aspects of family-based interventions and how they can be enhanced.