The cover art on my book has Harry Dresden, the main character, standing on the ledge of a building looking down on the city of Chicago. He is wearing jeans, a black t-shirt, a black hat, and a long, black coat. He is also holding a long staff. On the building wall behind him, there are 2 bloody paw prints. This is the second book in a series, so I've already found out that Harry is a wizard, but if you hadn't read the 1st book, you could tell his was a wizard, since the staff is glowing. The paw prints and the title give away that the plot is going to be related to wolves or werewolves in some way.