In the months (years?) prior to beginning studying for level I, I had really slacked off on my reading. Now that I'm back in practice, I'm using this hiatus to catch up on some great (business) books. Just finished the collected essays of Warren Buffet.
A great list of great books is here:
http://money.cnn.com/magazines/fortune/fortune_archive/2005/03/21/8254826/index.htm