Holbrook wrote in the first half of the 20th century about the businesses and characters that built the United States. His approach was not one of fawning adoration, rather he focussed on the quirks and oddities. He wrote in an irreverent popular style, yet the quality of the history in excellent. Think of him as a cranky David McCullough.Age Of Moguls is a series of biographies/portraits of the big actors in building the business that built this country.Buy this book and any anything else you can find of his.