Collection of strips from Xkcd, a free webcomic.

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

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 incredibly popular webcomic xkcd presents his heavily researched answers to his fans' oddest questions, including “What if I took a swim in

The second collection of Abby Howard's humorous semi-autobiographical webcomic.