StenDuring Actually, I often judge books by their covers. That's what covers are for; to let you know what's inside. If a book has a space ship on the cover, I'm going to assume it's science fiction, if it has a couple gazing into each others' eyes, I'm going to assume it's romance, and if it has a complicated mathematical formula on the cover, I'd be really surprised if it turned out to be about a community of shapeshifters at war with a community of necromancers.