Lot of 4 books shown. There are 3 books in one photo and then i decided to add another one to the mix which is a catalog. So you get 4:The tracks, The Layout, The Wiring and the railroads you can build. Vintage Atlas Custom-Line Layouts for HO Scale Railroads book by John Armstrong, copyright 1957. This classic instructional guide provides comprehensive track plans, wiring diagrams, and technical advice for building detailed model railroad layouts. Included are nineteen specific layouts you can build, ranging from simple ovals to complex multi-level systems, along with essential information on trackage principles, roadbeds, and layout planning. Perfect for the model train enthusiast or vintage hobbyist looking for authentic mid-century design inspiration.