This book provides a basic but comprehensive information on the subject of Weapons of Mass Destruction. The book lists and discusses various biological, chemical and radiological agents and weapons. For each agent and/or associated weapon, the book describes what they are, and importantly, measures that citizen's can take to minimize the risks caused by exposure to them. Further more, the book addresses various questions commonly asked about these agents and weapons, in particular those related to their effects on human health. Also included in the book are sources for additional information.