An original watercolor work that was later used as the cover for the first book in the Harry Potter series is expected to become the most expensive item from the franchise ever sold when it hits ...

The watercolor cover art was created by author and illustrator Thomas Taylor. The image features young wizard Harry Potter – with his unmistakable dark, brown hair, round glasses and lightning ...

This past week, Sotheby's announced the auction scheduled for June 26 in New York of Thomas Taylor's original watercolor illustration for the first edition of Harry Potter and the Philosopher's Stone.