The "Ann Arbor Railroad in Color" book by Robert I. Warrick is a comprehensive textbook in hardcover format focusing on the history and operations of the Ann Arbor Railroad. Written in English, this book offers detailed information and insights into the railroad's colorful past, making it a valuable resource for model railroading enthusiasts and train hobbyists. With Warrick's expertise and in-depth research, this book is sure to provide readers with a captivating journey through the world of the Ann Arbor Railroad.