Summary of "The Intelligent Investor" The Intelligent Investor: The Definitive Book on Value Investing by Benjamin Graham is a classic text on value investing and prudent financial management. Benjamin Graham, widely regarded as the father of value investing, provides timeless principles and strategies for investing with a margin of safety. Main Concepts: 1. Value Investing - Graham introduces the concept of value investing, which involves buying stocks that are undervalued relative to their intrinsic worth. He emphasizes the importance of thorough analysis and long-term thinking. 2. Margin of Safety - A key principle of value investing is the margin of safety, which means purchasing investments at prices significantly below their intrinsic value to reduce risk. This approach provides a buffer against market volatility and errors in analysis. 3. Mr. Market - Graham uses the allegory of "Mr. Market" to illustrate the irrational behavior of the stock market. He advis