In this madcap journey, a bestselling journalist investigates psychopaths and the industry of doctors, scientists, and everyone else who studies them. The Psychopath Test is a fascinating journey through the minds of madness. Jon Ronson's exploration of a potential hoax being played on the world's top neurologists takes him, unexpectedly, into the heart of the madness industry.

An influential psychologist, who is convinced that many important CEOs and politicians are, in fact, psychopaths, teaches Ronson how to spot these high-flying individuals by looking out for little telltale verbal and nonverbal clues. And so, Ronson, armed with his new psychopath-spotting abilities, enters the corridors of power.

He spends time with a death-squad leader institutionalized for mortgage fraud in Coxsackie, New York; a legendary CEO whose psychopathy has been speculated about in the press; and a patient in an asylum for the criminally insane who insists he's sane and certainly not a psychopath.

Ronson not only solves the mystery of the hoax but also discovers, disturbingly, that sometimes the personalities at the helm of the madness industry are, with their drives and obsessions, as mad in their own way as those they study. And that relatively ordinary people are, more and more, defined by their maddest edges.

Mr. Quark is a down-on-his-luck pot-smuggler hiding out in the mountains of Colombia with his dog, High Pockets, and a small band of banditos led by the irascible Jose. Only months before, these three and their fearless associates were rolling in millions in cash and high-grade marijuana, eluding prosecution on ridiculously false drug and terrorism charges.

But times have quickly grown lean, and to liven up their exile, Jose decides to mug a family of American tourists. Among the spoils are physics texts, which launch Mr. Quark on a side-splitting, boisterous adventure north to California, where he confronts the owner of the books with his own theories on relativity, the nature of the universe, and looking for the meaning of life in all the wrong places.