The premier text on co-occurring mental and substance use disorders Written by professional counselors for counselors, this lucid text delivers comprehensive information for those who work with individuals suffering from these complex maladies. It is distinguished by its grounding in the holistic, wellness orientation of the counseling profession and a segment dedicated to specific populations such as military, LGBTQ+, multicultural, and those that are gender- or age-related. Contributing authors from diverse backgrounds, comprised mostly of counselors, provide an orientation that is distinct from that of the medical community. Written for masters and doctoral-level students in counselor education programs, the text provides the most current information available and is aligned with DSM-5 and CACREP standards. It offers a step-by-step approach to understanding COD concepts, guiding principles for working with such clients, treatment approaches and diagnostic considerations, and the neuroscience of addiction and mental health. It includes a breakdown of specific co-occurring disorders and describes special population considerations. Clinical case illustrations bring content to life and discussion questions reinforce information. A robust instructor's package includes an Instructor Manual, Test Banks, and Instructor Chapter PowerPoints. Key Features: Written by professional counselors for counselors Grounded in a holistic wellness orientation Offers a dedicated "special populations" section with considerations for age, gender, military, and LGBTQ+ groups Discusses diagnosis and treatment of specific co-occurring disorders Provides clinical case illustrations from the perspective of a practicing counselor Includes chapter learning objectives and discussion questions to foster critical thinking Aligned with DSM-5 and CACREP standards