From the creator of the wildly popular xkcd.com, and bestseller What If?, even more hilarious and informative answers to questions you probably never thought to ask. Filled with bonkers science, boundless curiosity, and Randall's signature stick-figure comics, WHAT IF?2 is sure to be another classic adored by inquisitive readers of all ages.

Randall Munroe is the creator of the webcomic xkcd and bestselling author of What If?, Thing Explainer and xkcd: Volume 0. Randall 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, and has since been nominated for a Hugo Award three times. The International Astronomical Union recently named an asteroid after him: asteroid 4942 Munroe is big enough to cause mass extinction if it ever hits a planet like Earth.