Creative Commons-licensed comics

xkcd (sometimes styled XKCD) is a serial webcomic created in 2005 by American author Randall Munroe. The comic's tagline describes it as "a webcomic of romance, sarcasm, math, and language". Munroe states on the comic's website that the name of the comic is not an acronym but "just a word with no phonetic pronunciation".

right|thumb|300px|A page from the first episode, with a different design of the main character Pepper than in later episodes right|thumb|300px|Episode 36 page 2 of Pepper&Carrot