Best of xkcd and Alex

Quelle: www.alexcartoon.com
Quelle: http://xkcd.com/1628/
Quelle: http://xkcd.com/1116/
Quelle: http://xkcd.com/277/
Quelle: http://xkcd.com/233/
Quelle: http://xkcd.com/294/
Quelle: http://xkcd.com/242/
Quelle: http://xkcd.com/1378/
Quelle: http://xkcd.com/642/
Quelle: https://xkcd.com/407/
Quelle: https://xkcd.com/1837/
Quelle: http://xkcd.com/916/