Obama's books (the other is The Audacity of Hope), by the way, are on the NYT Nonfiction Best Seller list, spots 8 and 16. Politico points out that they are there dagger free, meaning no one is trying to manipulate the order.
anti-Obama books in spots 1 and 6. A little bird points out that both have daggers next to them: “A dagger (†) indicates that some bookstores report receiving bulk orders.” That raises the possibility they are there through manipulation.
part 2
part 3