There was a book by @cstross (The Apocalypse Codex) that had a cover I couldn't stand. I checked the book out twice from the library, but every time I looked at the cover, I just couldn't make myself read it. I finally bought the ebook and, since I could just skip past the cover, and not have to see it every time I picked up the ereader, I could read the story — which I enjoyed immensely.