A Book by Its Cover

My mom picked up this book by Iris Murdoch to read the other day and I just loved the cover illustration on this Vintage Classics edition.  The colour on my Instagram shot doesn't really do it justice.  Wouldn't it make a cool poster?  They sadly don't mention the artist, but it would seem that Vintage Classics is known for their modern and contemporary covers for classic English novels.  Here are a few I particularly liked from their site:
I like that they keep to a very specific look for each author.  The Medea one gives me the shivers, knowing the story, and the Kafka ones are perfectly, well, Kafka-esque.  Have you read any of these?  Do you ever judge a book by its cover?