The 25 essays in Biographies provide biographical information with an emphasis on each person's contribution or impact on the Industrial Revolution. Personages include economic philosophers (such as Karl Marx and Adam Smith); innovators (Henry Ford, Robert Fulton, Eli Whitney); financial giants and robber barons (Andrew Carnegie, John D. Rockefeller); crusading journalists (Upton Sinclair and Ida Tarbell); and unionizer Mother Jones. More than 50 black-and-white photographs complement the text together with further reading, a time line, and index.