As a life-long booklover you've probably been in a library or two before the advent of bar code scanners or computerized catalogs, when books were still date-stamped. Take yourself back to that simpler time - when the library card system was meticulously and successfully patrolled by stalwart librarians - via a pair of Library Card Socks. These comfy crew socks (75% cotton, 10% nylon, 10% polyester, 5% spandex) are great gifts for anyone who remembers the library card system or who labored tirelessly to make it work. Set of 2 pair of socks. Choose size small (fits most women) or large (fits most men) and yellow, teal or turquoise.