The Lionel train manual is a vintage repair manual for servicing Lionel trains, published in 1985 by MDK, Inc. It is a nonfiction book written by K-Line, intended for adults who are interested in model railroads and trains. The manual features illustrated instructions for maintaining and repairing Lionel train sets from the 1980s, making it a valuable resource for collectors and hobbyists looking to preserve the authenticity and function of their vintage train collections.