In Liebrary, one player reads the title, author, and synopsis of a real-life book (e.g. Julius Caesar, Jurassic Park, or Mr. Brown Can Moo). The other players must each write and submit their best attempt at a first line for the book. The first player reads all the submissions, including the real first line of the book, and then the other players each try to pick out the real one. Players get points for choosing the real first line, getting other players to select their submission, and possibly knowing the real first line before it is revealed. The reader gets points only if no players correctly guess the real first line, but the reader position rotates.
This game is very similar to Balderdash and others of that nature, but using books instead of word definitions.