The treatment of coexisting chemical dependency and psychiatric disorders has long been a serious challenge for care providers. With the advent of managed care, counsellors, case managers, and other professionals increasingly are called upon to treat very ill and troubled clients in outpatient settings. Updated and revised, this edition offers an introduction to clinical work with this difficult-to-treat population. Providing a synthesis of chemical dependency and mental health models, the book articulates a framework for assessment and treatment and describes a range of effective counselling and motivational strategies for adolescents and adults. The book includes discussions of developments in treatment, sample treatment plans, increased coverage of ways to incorporate 12-step concepts into mental health interventions, and a section on trauma-based disorders in addicted female adolescents.