Covering a wide range of popular alternative medicine and health issues, User's Guides are written by leading experts and science writers and are designed to answer the consumer's basic questions about disease, conventional and alternative therapies, and individual dietary supplements.

Abram Hoffer, M.D., Ph.D., has published over 600 reports and articles as well as thirty books. His early work led to the use of niacin for schizophrenia and as an anticholesterol treatmens. He died in 2009 at the age of ninety-one.
Adrew W. Saul, Ph.D., is the author of Doctor Yourself and Fire Your Doctor! With Dr. Hoffer, he co-wrote Orthomolecular Medicine for Everyone and The Vitamin Cure for Alcoholism. He has published over 170 reviews and editorials. His non-commercial, natural healing website is DoctorYourself.com.
Harold D. Foster, Ph.D., worked as a geomorphologies, professor of medical geography, and consultant to the U.N. in disaster planning. He authored or edited over 300 publications, which focused on reducing disaster losses or identifying the causes of chronic degenerative and infectious diseases. He died in 2009.