Wilson. Perhaps the most comprehensive locomotive guide ever published, this book — featuring 400 time-spanning photographs — follows the progression of diesel engines from the 1930s to today. Readers will get an all-time roster for more than 100 major railroads in North America in addition to seeing spotting features and operating characteristics for them all! 350 pages, 400 color and B&W photos, 8¼"x 10¾", softcover.