If you can't wait to spend a few more hours in the world of Harry Potter, come to the library to pick up Quidditch through the Ages or Tales of Beedle the Bard, both written by J.K. Rowling to raise money for charity.
Hogwarts headmaster Albus Dumbledore is the editor of Tales of Beedle the Bard and he writes a few pages of commentary on each folk tale. "The Tale of the Three Brothers" is well-known from its telling in the Deathly Hallows, but my favorite part was the anecdote about Lucius Malfoy trying to remove "The Fountain of Fair Fortune" from the Hogwarts library. Dumbledore writes:
This exchange marked the beginning of Mr. Malfoy's long campaign to have me removed from my post as headmaster of Hogwarts, and of mine to have him removed from his position as Lord Voldemort's Favorite Death Eater.
Quidditch through the Ages - also known as the book that Snape confiscates from Harry Potter in the Sorcerer's Stone - covers the history of the sport, including the professional teams and the development of broomsticks. Its name comes from "Queerditch Marsh" where the first game was played. The snitch was added after an incident in which a wizard released a bird called a snidget onto the pitch and offered 150 galleons to anyone who caught it.