2017 was a major year for the Harry Potter universe. This year marked the 20th anniversary of Harry Potter and the Philosopher's Stone, and in celebration of this monumental occasion, Bloomsbury released 8 versions of Harry Potter and the Philosopher's Stone, 4 hard cover and 4 paperbacks, to represent the four Hogwarts houses. In addition, Bloomsbury recently released information that they will be printing the entire set for each of these 8 books. That's EIGHT different sets! Bloomsbury plans to alternate colors for each book that is released. For example, the Hufflepuff hard cover on Philosopher's stone has a black cover, so the cover for Chamber of Secrets will be yellow. These books will be a wonderful addition to anyones shelves.