Artist M.S. Corley, he who likes giving the retro Penguin Classic treatment to popular children’s book covers (as evidenced by his recent Harry Potter reworkings), is at it again. This time Mr. Corley sets his sights on Philip Pullman’s His Dark Materials trilogy. While these covers will not be on shelves (which is probably a good thing – they have way more retro adult appeal than kid allure), they’re fun to look at nonetheless. Click here to view all the covers.