Color Survey People have made some fun things with the color survey data already.  Howard Yeend did a 3D visualization, Gissehel made some maps out of the raw data, and Rune Grimstad made a color picker tool.  Also, Jacob Rus nerd sniped me with this, which is not related to the color survey but I’m […]

Sex and Gender

I’ve gotten a few emails and /msgs about this so I really wanted to post a clarification. When I put the color survey together, I was mostly interested in making maps and tables of color names; the opening survey was almost an afterthought. Finn added a question about chromosomal sex, since it’s closely correlated with colorblindness […]

Math Puzzle

This cool puzzle (and solution) comes from my friend Mike. Alice secretly picks two different real numbers by an unknown process and puts them in two (abstract) envelopes.  Bob chooses one of the two envelopes randomly (with a fair coin toss), and shows you the number in that envelope.  You must now guess whether the […]


I had a lot of fun putting together today’s comic. Anyone who likes strange charts like this should check out Edward Tufte’s The Visual Display of Quantitative Information. It’s long been one of my favorite books. Thank you to my friend Tina for color advice, and to my brother Ricky for some Lord of the […]


Just a note: thank you to everyone who made it to the events. We raised enough money to build a school!  It’ll be in the Salavan Province, on Road No. 13 South.  We’re not going to torment the kids’ ability to learn phonetics by calling it The XKCD School, but we will be writing a […]