The book reviews the performance over a 60 year time period of purchasing stocks trading below net current asset value. The stock filtering criterion was popularized by Benjamin Graham, the father of value investing, and a mentor to Warren Buffett who considered his professor and former employer one of the most influential people in his life. The book also reviews the portfolio performance by combining the net current asset value criterion with other value investing stock screens such as high dividend yield and low price-to-earnings ratio. Using this simple approach of selecting stocks trading below liquidation value, individual investors can achieve excellent returns by devoting just one day a year to their portfolio.