Titan is a comprehensive biography of John D. Rockefeller, the founder of Standard Oil and one of the wealthiest and most influential figures in American history. The book traces Rockefeller’s rise from modest beginnings to becoming a dominant force in the oil industry during the Gilded Age, detailing his business strategies, creation of a near-monopoly, and the public backlash that led to the breakup of Standard Oil. Chernow presents a balanced portrait, examining Rockefeller’s ruthless business tactics alongside his deep religious faith and unprecedented philanthropic contributions, including the founding of major educational and medical institutions. Rich in historical detail, the biography explores themes of capitalism, power, morality, and the shaping of modern corporate America.