This one-of-a-kind text brings together contemporary theories of addiction and helps readers connect those theories to practice using a common multicultural case study. Theories covered include motivational interviewing, moral theory, developmental theory, cognitive behavioral theories, attachment theory, and sociological theory. Each chapter focuses on a single theory, describing its basic tenets, philosophical underpinnings, key concepts, and strengths and weaknesses. Each chapter also shows how practitioners using the theory would respond to a common case study, giving readers the opportunity to compare how the different theoretical approaches are applied to client situations. A final chapter discusses approaches to relapse prevention.