Good Books

Anyone mind recommending some good books to me? I just finished a flurry of them, and my queue is getting short.

I just read 1984, by George Orwell; Catch-22, by Joseph Heller (which, sadly, I didn’t really enjoy); Love, Poverty, and War, by Christopher Hitchens; the Fabric of the Cosmos, by Brian Greene; and Ender’s Game, by Orson Scott Card.

Of course, I really enjoy sci-fi and fantasy, but lately I’ve been getting back into political books. Hence, 1984 and LP&W. I’m looking for something good in the same vein, but mature sci-fi like Ender’s Game would also be really good.