Brookens Library has over 400,000 books in its collection, and there are some pretty interesting tidbits and factoids living on those pages. We realized that and have decided to scour our shelves, pull some particularly interesting facts, and share them with all of you through our weekly Twitter series, Fun Facts from the Stacks. From the number of greeting cards purchased each year to the origins of the piñata, you are bound to walk away with an interesting fact to share with colleagues, friends, your dog, or whomever. What are you waiting for? Follow us on Twitter at @UISLib to see what fun facts we uncover this week.