Back in January, the New Yorker had a great article reviewing the state of the modern Arabic novel. It's worth reading as, I'm guessing that, like me, you know absolutely nothing about Arabic novels - and there's a lot to know (and a lot of it is very subtle).
If you want to skip the article, I created an Amazon Wishlist where you can see all the books. As I was building the wishlist, I noticed an interesting phenomena. These books are almost always bought together. Take a look at the screenshot below. All seven of those books are in the list:
I wonder if these were always bought together or if the New Yorker article caused them to be clustered together. Ah, the magic of Amazon and collaborative filtering...