Book excerpt: Praise for the previous edition: "This fun-to-read source will add spice for economics and business classes..."—American Reference Books Annual "...worthy of inclusion in reference collections of public, academic, and high-school libraries. Its content is wide-ranging and its entries provide interesting reading."—Booklist "A concise introduction to American inventors and entrepreneurs, recommended for academic and public libraries."—Choice American Inventors, Entrepreneurs, and Business Visionaries, Revised Edition profiles more than 300 important Americans from colonial times to the present. Featuring such inventors and entrepreneurs as Thomas Edison and Madame C. J. Walker, this revised resource provides in-depth information on robber barons and their counterparts as well as visionaries such as Bill Gates. Coverage includes: Jeffrey Bezos Michael Bloomberg Sergey Brin and Larry Page Michael Dell Steve Jobs Estée Lauder T. Boone Pickens Russell Simmons Oprah Winfrey Mark Zuckerberg.