"Yes, You Can Time the Market" by Ben Stein and Phil DeMuth
Brian Gongol

An excellent choice of reading for the intermediate-level investor; that is, someone who has at least a little experience with investing in stocks, bonds, and/or mutual funds, and who has been in the market long enough to know that day-to-day market watching is nothing more than a recipe for nausea. Stein and DeMuth do a great job of developing the reader's understanding of price/earnings ratios and related metrics of value in equities markets. A definite recommendation with a great companion website.