 Olson's encyclopedic satire "Encyclopedia of Hell" is published by Feral House (July 2011); the film rights were bought by Warner Bros. through producer Andrew Lazar for Mad Chance.The French edition was published in 2016 by Les Editions Lapin, Paris.His notorious children's book "The Adventure Time Encyclopaedia" (July 2013), published by Abrams Books, reached #5 on the New York Times Best-Seller List.