This Drug Enforcement Administration publication delivers clear, scientific information about drugs in a factual, straightforward way, combined with precise photographs shot to scale. The publication is intended to serve as an A to Z guide for drug history, effects, and identification information. Chapters are included on the Controlled Substances Act and the different drug classes, including narcotics, depressants, stimulants, cannabis, hallucinogens, steroids, and inhalants. A directory of domestic DEA offices is provided, as well as National Guard Counterdrug Coordinators. and National Guard Drug Demand Reduction Administrators. (GCP)