From the creator of the wildly popular webcomic xkcd, hilarious and informative answers to important questions you probably never thought to ask Millions of peo

Collection of strips from Xkcd, a free webcomic.

AN INSTANT #1 NEW YORK TIMES BESTSELLER “How To will make you laugh as you learn…With How To, you can't help but appreciate the glorious complexity of our u

The creator of the popular webcomic "xkcd" uses line drawings and common words to provide simple explanations for how things work, including microwaves, bridges