http://www.jonronson.com/psycho.html

This is a story about madness. It all starts when journalist Jon Ronson is contacted by a leading neurologist. She and several colleagues have recently received a cryptically puzzling book in the mail, and Jon is challenged to solve the mystery behind it. As he searches for the answer, Jon soon finds himself, unexpectedly, on an utterly compelling and often unbelievable adventure into the world of madness.