This document discusses the topic of health quackery. It defines quackery as the promotion or sale of medical products or services that have not been proven safe or effective. It identifies three major characteristics of health quackery: it is a big business, it spreads fast, and preys on people with illnesses that have no known cure. The document outlines three forms of quackery: medical quackery involving alternative treatments, nutrition quackery involving food fads, and device quackery using gadgets to treat health conditions. It asks the reader to consider why people fall for quackery and assigns making a poster on this topic.