Mary Uh, it's not a published book or being sold as such... It's a freaking fanfic so there is no cover for anything, ROFLMFAO.
Francesca Dell This isn't technically a published book. It's just a fanfic on fanfiction.net and Robert Pattinson was just used in a banner for the fic. Because it isn't getting sold and the authors aren't earning any money on it there isn't anything legally wrong with using him. :)