A biography of Benjamin Graham, the father of value investing, the only boss Warren Buffett ever had, and one of Buffett’s most influential mentors. The book traces the early hardships that shaped Graham’s worldview—his family’s financial collapse, his mother’s struggles, and the losses he suffered in the 1929 crash. These experiences fueled his drive for financial independence and led him to start his own investment partnership (i.e., hedge fund) and to develop the analytical framework that still anchors value investing today. His philosophy introduced enduring concepts such as intrinsic value, margin of safety, and the “Mr. Market” parable. The book also explores the contrast between Graham’s high professional ethics and the complexity of his personal life.