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Pi Day 2014

Celebrate Pi-N-Stein Day with us!

Friday's that magical day of the year on which we celebrate both our favorite number AND our favorite Greek letter - Pi! And, you might find it irrational coincidence (see wut we did there?), but we also celebrate the birth of Einstein, whom we consider to be relatively important (we'll stop now). Want to see how we break it down at ThinkGeek World Domination HQ? Check out the video

Pi-tastic Products

Pilfer our piles of Pi products before they're picked over. We have all your mathematical constant needs for your closet, your kitchen, and your home. Finding math goodies on ThinkGeek is a piece of cake pie.