is the New York Times best-selling author and illustrator of Frankenstein Makes a Sandwich. His other books include Pssst!, Moonday, The True Meaning of Smekday, Fat Vampire, and Cold Cereal. He also illustrated the Brixton Brothers series, Billy Twitters and His Blue Whale Problem, and Chloe and the Lion, all by Mac Barnett, and Chu’s Day by Neil Gaiman. He lives in Tucson, Arizona. Visit him at adamrex.com or follow him on Twitter @MrAdamRex.