It's a sock in a book! As seen on HBO. The sock makes an appearance in episode 3 of the reboot of Sex and the City, And Just Like That. LOL. Bookmarks are underrated... until you have a clean, single sock sticking out of a funny memoir or kid's classic. Bookmarks are printed double-sided on a sturdy 18pt Cover paper stock. Packaged one per cellophane bag with scored card closure.