Award winner Albert Marrin answers the question: "What's eating you?" -literally From nonfiction master Albert Marrin, here is the shocking story of the longest running war of all time: man versus parasite. From fleas, ticks, lice, and bedbugs to worms, mites, leeches, and maggots, Marrin explains what parasites are, how they invade our bodies, and their effects for good or ill. At their best, parasites have saved limbs and lives; at their worst, they've been responsible for the deaths of billions of people and altered the course of human history. With photographs and illustrations throughout, this exploration of the hidden world exposes the creatures responsible for making our skin crawl-since the beginning of time.