The 1990 K-LINE Electric Train book by Lionel is a nonfiction guide focused on trains from the time period of 1970-1979. This paperback book, published by Lionel in the United States, provides information and insight into the world of model railroads and trains. With a narrative centered around the topic of trains, this book serves as a valuable resource for hobbyists and enthusiasts looking to expand their knowledge and expertise in the field.