The House of Morgan was the personification of economic power and the symbol of capitalism in the late nineteenth and early twentieth centuries. Other entrepreneurs were wealthier -industrialists like Rockefeller, Carnegie, and Duke -but none was relied upon more by business and government or better known in the world of high finance. Vincent Carosso, using for the first time the large collections that constitute the Morgans' own business records, as well as other private papers and public archives, has constructed an in-depth account of the evolution, operations, and internal management...