The Mental Health-Substance Use series provides clear guidance for professionals on this complex and increasingly recognised field. It concentrates on the concerns, dilemmas and concepts that impact on the life and well-being of affected individuals and those close to them, and the future direction of practice, education, research, services, intervention, and treatment. Mental health-substance use is a complex and varied phenomenon, and this volume stresses an appreciation that interventions that work for one individual or family may prove ineffective for another. It therefore explores the needs of individuals and carers, the nature of the therapeutic relationship, and the theory and application of a variety of interventional techniques; these include group therapy, cognitive behaviour therapy (CBT), motivational interviewing (MI), brief interventions and many more. The volumes in this series are designed to challenge concepts and stimulate debate, exploring all aspects of the development in treatment, intervention and care response, and the adoption of research-led best practice. They are essential reading for mental health and substance use professionals, students and educators.