'The Sociopath Next Door' takes a hard look at the sociopaths in everyday life. Martha Stout explains that these people learn early on to show sham emotion, but underneath live only to dominate others and win. The fact is, statistically, we each know at least one sociopath, and readers will have an 'a-ha!' moment of recognizing that someone they know - someone they worked for, or were involved with - is a sociopath. Unfortunately, one of the chief characteristics of a sociopath is a kind of glow or charisma that makes them more charming or interesting than other people. They are more spontaneous, more intense, complex, or even sexier than everyone else, making them tricky to identify and leaving us easily seduced. But 'The Sociopath Next Door' teaches us to recognize the ruthless among us.