This book provides a comprehensive, state of the art overview that covers both the diagnosis and the treatment of dual disorders - joint psychiatric and substance use disorders associated with a worse outcome and disease progression than single psychiatric or addictive disorders. The book is designed to be highly relevant to clinical work and the organization of care systems and meets the real need for a European perspective on dual disorders that takes into account the realities of European treatment organization. All chapters have been written by European authors on the basis of existing European treatment programs or guidelines and European research. The book will be invaluable for all health professionals working in mental health and addiction care, who are increasingly confronted with patients suffering from dual disorders.

Geert Dom, MD, PhD, is psychiatrist and psychotherapist, and specialized in addiction psychiatry and dual disorder treatment for over 20 years. He is medical director of the Psychiatric Center Alexian Brothers, Boechout in Belgium. Academically he is professor in addiction psychiatry at the Antwerp University (UA), vice-chair of the Collaborative Antwerp Psychiatric Research Institute (CAPRI), and academic consultant at the hepatology and liver-transplantation department of the Antwerp Academic Hospital (UZA). In addition he was involved in the development of the Master in Addiction Medicine training program at the Radboud University, Nijmegen, The Netherlands. His main research areas are the neurobiological and neurocognitive processes underlying the pathogenesis of addictive disorders and the interaction with other psychiatric disorders. He has authored and co-authored more than 130 journal articles and book chapters and edited four books on substance use and dual disorder topics.

Geert Dom was the president of the Belgian Professional Association of Medical Specialists in Psychiatry from 2005 till 2011. From 2012-2014 he was the president of the Flemish Psychiatric Association. He has been an adviser for many governmental bodies on issues related to addiction and psychiatry in general. Currently he is chairing the Flemish Quality Indicator project, developing and implementing quality indicators within the Flemish mental health care. At the moment he is also a board member of the European Psychiatric Association (EPA) and vice-chair of the section on addictions of the EPA.

Franz Moggi, PhD, Psychotherapist FSP, Executive MBA, is head psychologist at the University Hospital of Psychiatry, University of Bern, and associated professor at the Department of Psychology, University of Fribourg, Switzerland. At the University Hospital, he is the head of the Clinical Psychological Service, the Psychotherapy Section, and the Addiction Research Group. Since the early nineties of the last century, he ran projects on substance use treatment, treatment for patients with dual disorders (e.g., substance use and schizophrenia, personality disorders, or ADHD), on child maltreatment and sexual abuse, and on sexual involvement of health care professionals with their patients. These projects have been supported with more than 2.5 million US $ by the Swiss National Science Foundation, the Federal Office of Public Health, the Swiss Foundation for Alcohol Research, and the Swiss Department of Internal Affairs. Franz Moggi authored more than 100 articles in peer reviewed journals and chapters in books, wrote four books, and gave lectures and workshops on dual disorders, motivational interviewing, behavioral assessment, and cognitive-behavioral therapy. He was research fellow at the Center for Health Care Evaluation, VA Palo Alto Health Care System and Stanford University School of Medicine and Behavioral Sciences. Franz Moggi was president of the Ethical Board of the Federation of Swiss Psychologists (FSP) and now is president of the Swiss Foundation for Alcohol Research.