I just started reading "the only three questions that count," by Ken Fisher. Didn't expect much, as it looked to be another qualitative type book rehashing common knowledge. However, a few chapters in and I am pretty impressed. The gist of it is to run your own experiments/studies to prove to yourself how things really work. This is useful for a lot of posters who seem to be shocked at why the market is behaving the way it is. One myth he deconstructs is the P/E ratio myth perpetuated by shiller and accepted as gospel. He aslo does a pretty good job of it IMO. Although the shiller argument made a lot of common sense on the surface, it was refreshing to see it from fisher's perspective (a lot more objective). It's useful from time to time to look at (and bet on) how things "really are," rather than what our common sense or logic dictates they should be.