One of the most feared crimes among urban dwellers, armed robbery poses a serious risk of injury or death, and presents daunting challenges for law enforcement. Yet little is known about the complex factors that motivate assailants who use a weapon to take property by force or threat of force. Armed Robbers in Action is not like previous studies that focus on the often distorted accounts of incarcerated offenders. Richard T. Wright and Scott H. Decker conducted dangerous, life-threatening field research on the streets of St. Louis to obtain more forthright responses from robbers about their motives and methods. They also visited several crime scenes to examine how situational and spatial features of the setting contributed to the offense. Quoting extensively from their conversations with the offenders, the authors consider the circumstances underlying the decision to commit an armed robbery, explore how and why targets are chosen, and detail the various tactics used in a hold-up. By analyzing the criminals' candid perspectives on their actions and their social environment, the authors provide a fuller understanding of armed robbery. They conclude with an insightful discussion of the implications of their findings for crime prevention policy.