The World Encyclopedia of Serial Killers is the most comprehensive set of its kind in the history of true crime publishing. Written and compiled by Susan Hall, the four-volume set has more than 1600 entries of male and female serial killers from around the world.Defined by the FBI as a person who murders 3 or more people over a period of time with a hiatus of weeks or months between murders, serial killers have walked among us from the dawn of time...