This two-volume set, titled "MODEL RAILROADER CYCLOPEDIA," is a must-have for any railroad enthusiast. The books contain a wealth of information on the topic of trains, including technical specifications, historical background, and practical tips for model railroading. The volumes are in excellent shape, with no signs of wear and tear. They are perfect for collectors of vintage books, model railroaders, or anyone interested in the history of trains. The books are paperback and are illustrated with diagrams and photographs. Thank you for considering these volumes for your collection.