What did Ida Tarbell and book The History of the standard Oil Company do?

Ida Tarbell was a pioneering investigative journalist whose work, particularly in her book "The History of the Standard Oil Company," played a crucial role in exposing the monopolistic practices of John D. Rockefeller and his Standard Oil Company. Published in 1904, the book detailed the company's ruthless tactics to eliminate competition and manipulate the oil market, revealing the corrupt side of big business during the Gilded Age. Tarbell's meticulous research and compelling narrative significantly influenced public opinion and contributed to the growing demand for antitrust regulation in the United States, ultimately leading to the breakup of Standard Oil in 1911.