Scholastic has released Mary GrandPre's artwork for the back cover of "Harry Potter and the Half-Blood Prince." According to the publisher,

The back cover depicts Ron and Hermione as well as two other Hogwarts students looking at "the Dark Mark." Drawn in the same green tones as the front cover, GrandPre has created another incredible piece of art that captures the essence and mystery of the Harry Potter books.

Quite a number of formats and editions of Harry Potter 6 will be available.