Book excerpt: This insightful book is a synoptic presentation of Causes and Treatment of Alcoholism and Drug Addiction. It gives an insight into Alcoholism and Drug Addiction genetic and/or acquired etiologies through researched studies that draw the conclusion that Addiction is a disease/ medical condition. It features the treatment from detox followed by psychotherapy with evidence based practices and supported by Aftercare programs to maintain sobriety and recovery. An insight into Alcoholism and Drug Addiction Psychotherapy with evidence based practices Aftercare programs Classification and effects of psychoactive drugs Drug screening procedures Motivational Interviewing Causes and Treatment of Alcoholism and Drug Addiction Life and clinical experiences Culture and Drug Addiction Levels of Care in Structured Programs