This book is the result of fifteen years of firsthand experience with drug and alcohol abuse and the related crime and imprisonment that often accompanies it. This raw, real-life experience has been expertly interwoven with the most up-to-date science on drug pharmacology, classifications, substance use disorder, and effects upon the brain and body. It also explores prevention, treatment, and substance abuse in diverse cultures and special populations such as youth, criminal offenders and people with dual diagnosis.