Knowledge about drugs of abuse, from pharmacology to trends in use, is constantly changing and can come from many different sources, including books, journals, the Internet, and the popular media. Too often, however, much of that information is biased, scientifically flawed, or peppered with a political agenda. Drs. Winger, Woods, and Hofmann, instead, have produced a scientific, concise, and comprehensive primer on virtually all drugs of abuse. As with previous editions (the last edition was 10 years ago), the authors have crafted this book for a wide target audience—from undergraduate pharmacology students to medical students, to substance abuse specialists, and to laypeople with a curiosity about drugs of abuse.