Jon Ronson is a British-American journalist, author, and filmmaker. He is known for works such as Them: Adventures with Extremists (2001), The Men Who Stare at Goats (2004), and The Psychopath Test (2011).

The Psychopath Test: A Journey Through the Madness Industry is a 2011 book written by British author Jon Ronson in which he explores the concept of psychopathy, along with the broader mental health "industry" including mental health professionals and the mass media. It spent the whole of 2012 on United Kingdom bestseller lists and ten weeks on The New York Times Best Seller list.