Benjamin Graham was an English-American financial analyst, economist, accountant, investor and professor. He is widely recognized as the father of value investing, a discipline centered on careful analysis and rational decision-making in investment selection. Graham co-authored Security Analysis with David Dodd in 1934, one of the founding texts of value investing. He later wrote The Intelligent Investor in 1949, which became another cornerstone work in the field. These books established many of the principles that continue to guide value investors today. His investment philosophy emphasized several key principles: independent thinking, emotional detachment from market movements, and thorough security analysis. Graham stressed the critical importance of distinguishing between the price of a stock and the actual value of the underlying business, a distinction that remains central to value investing approaches.