The Harry Potter books were originally issued with beautiful hardcover dust jackets featuring the warm and delightful illustrations of Mary GrandPré, who gave most readers their first idea of what the wizarding world looked like. Now, newly discovered unpublished pictures show much more of GrandPré's vision.
We haven't learned much about these images, which began being passed around on Twitter and image-sharing sites earlier this week. Do you know the story? Tell us in the comments.
This one looks like a medieval woodcut of a town plan. (It's Hogwarts, with the Quidditch field in the lower-right corner.)
See the whole set here.