Designer Bookbinders has a sick partnership with the Man Booker Prize people.
They've apparently been doing it since 2005. Because it is hard to become a DB fellow, and the deadline challenges (see quote below), the set of binders isn't so diverse. They tend to be of the older generation and there is a fair amount of repetition (of binders and of designs) year to year.
All the works are neato. But here are the best, sorted by age (from most recent). All photos from Designer Bookbinders, with links where possible, unless otherwise noted.