The new edition of this classic text remains the definitive dictionary in epidemiology. In fact, it is more than a dictionary, with some reviewers remarking that if they had to limit their professional library to one volume, this would be the book they would choose. In the complex field of epidemiology, the definition and concise explanation of terms is a key to understanding epidemiologic concepts, and the dictionary goes beyond simple definitions, as it place each term firmly and clearly in its fuller epidemiologic context. The new edition sees Miguel Porta as editor, with the legendary John Last remaining as associate editor. There are a large number of new terms, and the new edition features new artwork and fresh, new, clean design.