xkcd is a “webcomic of romance, sarcasm, math, and language” and has one of the funniest, and most accurate, takes on the difference between similes and metaphors I’ve ever read. It’s also not too shabby on puns, either. xkcd is “a CNU graduate with a degree in physics. Before starting xkcd, I worked on robots at NASA’s Langley Research Center in Virginia. As of June 2007 I live in Massachusetts. In my spare time I climb things, open strange doors, and go to goth clubs dressed as a frat guy so I can stand around and look terribly uncomfortable. At frat parties I do the same thing, but the other way around.” xkcd’s favorite astronomical entity is the Pleiades. Click on the comic to make it larger.