AN INSTANT NEW YORK TIMES BESTSELLER! An NPR Best Book of 2022 "The questions throughout What If? 2 are equal parts brilliant, gross, and wonderfully absurd and the answers are thorough, deeply researched, and great fun. . . . Science isn't easy, but in Munroe's capable hands, it surely can be fun." --TIME
The #1 New York Times bestselling author of What If? and How To answers more...