xkcd Figures Out How Many Snowflakes It Would Take to Cover the World in Six Feet of SnowJuly 11, 2014
Shopped Tattoos, A Tumblr Blog Imagining What Celebrities Would Look Like if They Had TattoosFebruary 28, 2014
What If?: Serious Scientific Answers to Absurd Hypothetical Questions, A Book Based on xkcd’s Blog ‘What If?’March 12, 2014
