If you're a fan of the 'Harry Potter' franchise, then we've got a treat for you. You may have heard of the talented American illustrator Mary GrandPré who is known for her work on over 20 books, including the cover and chapter illustrations of the U.S editions of the Harry Potter books. But, many of you out there may not have seen these awesome unpublished creations. Mary's artwork is created with the use of paint and pastels, the end results taking you to another world. Take a look!