[m_d]

I haven't read it, so I can't vouch for it, but Snakes in Suits [1] is a frequently recommended book on this subject.

[1] http://amzn.com/0061147893

[tekalon]

Great book on the topic. Talks a lot about how they do function in society (great business man-jerk of a boss, Provides well for family-controlling husband/father, etc). The book 'Sociopath Next Door' also goes further on how to deal with them.