danger of crossing it?Renowned social psychologist Philip Zimbardo has the answers, and in The Lucifer Effect he explains how–and the myriad reasons why–we are all susceptible to the lure of “the dark side.” Drawing on examples from history as well as his own trailblazing research, Zimbardo details how situational forces and group dynamics can work in concert to make monsters out of decent men and women. Zimbardo is perhaps best known as the creator of the Stanford Prison Experiment. Here, for the first time and in detail, he tells the full story of this landmark study, in which a group of college-student volunteers was randomly divided into “guards” and “inmates” and then placed in a mock prison environment. Within a week the study was abandoned, as ordinary college students were transformed into either brutal, sadistic guards or emotionally broken prisoners. By illuminating the psychological causes behind such disturbing metamorphoses, Zimbardo enables us to better understand a variety of harrowing phenomena, from corporate malfeasance to organized genocide to how once upstanding American soldiers came to abuse and torture Iraqi detainees in Abu Ghraib. He replaces the long-held notion of the “bad apple” with that of the “bad barrel”–the idea that the social setting and the system contaminate the individual, rather than the other way around.This is a book that dares to hold a mirror up to mankind, showing us that we might not be who we think we are. While forcing us to reexamine what we are capable of doing when caught up in the crucible of behavioral dynamics, though, Zimbardo also offers hope. We are capable of resisting evil, he argues, and can even teach ourselves to act heroically. Like Hannah Arendt’s Eichmann in Jerusalem and Steven Pinker’s The Blank Slate, The Lucifer Effect is a shocking, engrossing study that will change the way we view human behavior.

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