It was only a matter a time before public libraries figured out how establish their presence on social media. Enter bookface, which involves lining up your face or body with a book cover that has a matching body part and taking a photo. Libraries and readers have started to upload these photos to Instagram with hashtags like #bookface and #bookfaceFriday. This potential trending topic has the opportunity to give libraries some social media shine - and the pictures are funny as hell, too.