In this guide for sophisticated investors, Biderman uses plain language to describe a market-proven technique for improving returns by following the "smart money" in the stock market. His methodology is based on an understanding of liquidity—the relationship between the amount of shares available for purchase and the amount of cash available to buy them. Biderman founded TrimTabs Investment Research, an independent firm providing institutional investors with trading strategies and insights. Annotation ©2006 Book News, Inc., Portland, OR