David Nasaw’s biography of Andrew Carnegie are focused on Carnegie's early life and career, specifically examining his transition from a poor weaver’s son in Scotland to an ambitious and successful businessman in the United States. Nasaw explores Carnegie’s personal and professional development, including his family’s struggles, his education, his early jobs, and his eventual rise to prominence in the steel industry. The text explores Carnegie's business strategies, his relationships with key figures like Tom Scott and Henry Frick, and his evolving philanthropic views. It further examines Carnegie's commitment to peace and arbitration, his relationships with prominent political figures like President William Howard Taft, and his enduring legacy as a major figure in both the world of business and philanthropy.