The Baltimore & Ohio B&O Caboose Diagram Book by Robert Hubler is a valuable resource for collectors and hobbyists interested in model railroads and trains. Published in 1982 as a paperback in English, this book provides detailed diagrams of B&O caboose cars. With the author's expertise and inclusion of photos, this book serves as a comprehensive guide for those looking to learn more about the history and design of these iconic train cars.