Randall Munroe is the author of the popular webcomic xkcd and the science question-and-answer blog What If. Munroe was born in Easton, Pennsylvania and grew up outside Richmond, Virginia. After studying physics at Christopher Newport University, he got a job building robots at NASA Langley Research Center. In 2006, he left NASA to draw comics on the internet full-time, supporting himself through the sale of xkcd t-shirts, prints, posters and books. xkcd has been compiled into the book xkcd: volume 0 and he has also written What If?: Serious Scientific Answers to Absurd Hypothetical Questions and Thing Explainer: Complicated Stuff in Simple Words.