On a different plane is Chris Caldwell's Reflections on the Revolution in Europe which is a stunningly smart, and detailed, look at the intersection of Europe, immigration, and Islam. I can't say enough about the book. Total hotness on every page.
Update: For those who don't understand how the comic book world works, a long graphic novel has an enormous lead time, often years. DC's parent company rode herd over both properties. And while I was trying to be polite, here's Azzarello talking less politely about the similarities between Joker and The Dark Knight:
Wizard: I know you and Lee came up with this almost out of Lex Luthor: Man of Steel, now that's way before "The Dark Knight" movie, and yet, this Joker that you've crafted and the story, fits so seamlessly into that "Dark Knight" interpretation. It's kind of eerie. What do you think of that?
AZZARELLO: Gosh, I don't know. You think someone might have saw the script or Lee's art? I don't know. Look, it's Batman. I can't be proprietary about that stuff. It's happened to me before. It seems like whenever I touch these company-owned characters, for some reason something that I do ends up somewhere else. It's the nature of the beast.