„What if?“ and „Thing Explainer“ Book Signing
Your chance to meet the man behind the panels! XKCD artist Randall Munroe will be on-hand selling and signing copies of his new book, "Thing Explainer: Complicated Stuff in Simple Words" as well as "What if?".
Participants can also bring other XKCD items like t-shirts to be signed or ask a "What if?" question.