One of his favorite books on madness, as told to The Daily Beast:
Without Conscience: The Disturbing World of the Psychopaths Among UsRead about a novel on Ronson's list.
by Robert Hare
For all the wider problems with labeling and checklists, I found Hare’s book incredibly instructive. His contention is that psychopaths bury their madness beneath a veneer of normality, so you need the checklist to identify them by the nuances of their behavior. I’m certain he’s right. He once said to me, “When you meet a high scoring one it’s stunning.” Recently I was interviewing a spy and he started talking about how much he enjoyed—as a schoolboy—jumping out from behind trees to hit people with bricks. I used Hare’s teachings to ask him, “Do you think empathy is a weakness?” He said, “Oh yes!”
--Marshal Zeringue