Have been re-reading 'The God Delusion' by Richard Dawking there is so much in it that it's a bit overwhelming at first but it's a brilliant read.
I really need to start reading 'The Dark Tower' series from Stephen King it's been out for ages now but I never got round to it.
Freakonomics by Stephen Levitt which looks at the "hidden side of everything" some interesting examples would be;
Which is more dangerous, a gun or a swimming pool? What do schoolteachers and sumo wrestlers have in common? Why do drug dealers still live with their moms? How much do parents really matter? How did the legalization of abortion affect the rate of violent crime?