Benjamin Graham

Benjamin Graham was a British-American economist and investor whose book The Intelligent Investor is widely considered the definitive text on value investing and sound financial thinking.

Benjamin Graham taught at Columbia Business School for decades, managed money through the Great Depression, and mentored Warren Buffett, who has called The Intelligent Investor the best book on investing ever written. That endorsement is one of the most-cited in popular finance, and it is not merely promotional: Graham’s framework — the margin of safety, Mr. Market, the distinction between investment and speculation — has proven more durable than almost any other approach to equity markets.

The Intelligent Investor was first published in 1949 and has been revised several times. The most useful current edition includes Jason Zweig’s chapter-by-chapter commentary, which updates Graham’s examples and wrestles honestly with which elements of his framework need adjustment for modern markets. The core argument — that the stock market is a mechanism for transferring wealth from the impatient to the patient, that genuine investors focus on business value rather than price movements, and that temperament matters more than intellect — remains as relevant as when Graham first made it.

The book is not easy reading. Graham’s prose is precise but dense, and some sections dealing with financial analysis are technical enough to require patience. Readers looking for a quick motivational read should look elsewhere. But for anyone who wants to understand how to think about equity markets as an owner of businesses rather than a trader of prices, The Intelligent Investor provides a foundation that no subsequent book has superseded.