In his third investigative book, The Psychopath Test: A Journey Through the Madness Industry, Jon Ronson gets reeled - sometimes willingly, sometimes not - into the mad, mad world of psychopathy. He takes a look at the history of diagnosing (Would you be able to pass the twenty question psychopath test?) and treating (which, in the past, has included stripping down and taking hallucinogenic drugs - in a controlled, clinical environment, of course) this often misunderstood psychosis.
Besides taking a look at the patients themselves, Ronson examines the egos and the motivations of the people doing the diagnosing (the doctors), providing the drugs (the pharmaceutical industry), doing the reporting (the media, including himself) and fighting the industry (Scientologists). He also takes a look at the large and influential group of people who may be going undiagnosed - our political and financial leaders.
Throughout all this, Ronson analyzes both the minds that control these psychological issues and how these psychological issues control peoples' minds. If you're interested in learning more about the madness which makes up the madness industry, check out Ronson's book.