Millions of people visit xkcd.com each week to read Randall Munroe’s iconic webcomic. Today, Houghton Mifflin Harcourt announces it will publish Munroe’s new book “WHAT IF?: Serious Answers to Absurd Hypothetical Questions” on September 2, 2014. Based on the wildly popular blog of the same name, WHAT IF?, the book, will feature new hypothetical questions and answers illustrated by infographics, lists and, of course, Randall’s signature stick figure drawings. We’ll also revisit some of his favorite questions from the blog. It’s the perfect book for anyone who has ever wondered how fast you can hit a speed bump while driving and live, or what would happen if a Richter 15 earthquake hit New York City.