I know I've posted about Toni Morrison's books before, but I just love her books and have hated the cover designs (with the exception of one of her most recent books, A Mercy) the designs of her previous books have been thoroughly uninspiring and unoriginal, a pale tribute to the content within.
To be fair, they are indicative of the time period in which they were designed, but still, they're awful. And I get the "look" of the books -- just straight text, but some aren't even consistent with their typography, or color palette which just makes them look sloppy.