I generally have at least three books I'm reading at the same time. Right now, sitting on my desk is:
The Subtle Knife, Phillip Pullman
Changes, Jim Butcher
Princeps Fury, Jim Butcher
First Lords Fury, Jim Butcher(The man is a genius)
A Brief History of Time, Stephen Hawking
And, perhaps most importantly, Uncle John's Awe-Inspiring Bathroom Reader, The Bathroom Reader Institute.
My desk is not exactly organized. I wouldn't be surprised to find the original charter for the Mayflower floating around in a drawer somewhere.