xkcd
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 xkcd facts

• 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"
• The subject matter of the comic varies from statements on life and love to mathematical and scientific in-jokes
• Some strips feature simple humor or pop-culture references
• Although it has a cast of stick figures, the comic occasionally features landscapes and intricate mathematical patterns such as fractals, graphs and charts
• New comics are added three times a week, on Mondays, Wednesdays, and Fridays, although on some occasions they have been added every weekday
• Munroe has released two spinoff books from the comic
• His 2014 book What If? is based on his blog of the same name which answers unusual science questions from readers in a light-hearted but scientifically grounded way
• The What If column on the site is updated with new articles from time to time
• His 2015 book Thing Explainer was based on comic No