Thing Explainer

Thing Explainer: Complicated Stuff in Simple Words is a 2015 illustrated non-fiction book created by Randall Munroe, in which the author attempts to explain various complex subjects using only the 1,000 most common English words. Munroe conceptualized the book in 2012, when drawing a schematic of the Saturn V rocket for his webcomic xkcd. Published by Houghton Mifflin Harcourt, material from Thing Explainer has been incorporated in United States high school textbooks.