 It was widely reviewed, and was listed as one 2009's "books of the year" in "The Guardian", with Mary Warnock saying that "[d]espite its title, it's a gripping read".Bortolotti's third book in 2009 was "Delusions and Other Irrational Beliefs", a monograph exploring delusions and requirements for the ascription of beliefs.The book was highly successful, being awarded the American Philosophical Association's 2011 book prize.