Great Fortunes and How They Were Made is a book written by James D. McCabe that explores the stories of some of the most successful businesspeople and entrepreneurs in history. The book is divided into several chapters, each focusing on a different industry or sector, such as steel, oil, banking, and transportation.

Throughout the book, McCabe provides detailed accounts of how these individuals were able to amass their great fortunes, often through a combination of hard work, innovative thinking, and a bit of luck. He also examines the economic and social conditions that allowed these individuals to succeed, and the impact their success had on the world around them.

While the book is primarily focused on the stories of these successful businesspeople, it also provides insight into the broader economic and social forces that shaped the world in which they lived.