This book is a comprehensive history of the Southern Pacific railroad company from 1901 to 1985. It covers the company's operations, business practices, and impact on the United States. The author, Don L. Hofsommer, is a renowned historian and expert in transportation history. The book is a valuable resource for anyone interested in the history of railroads, business, and transportation. It is a hardcover textbook published by Texas A&M University Press in 2009, and has 392 pages. The book is in very good condition and is an excellent addition to any library.