This comprehensive guide is a must-have for any adult enthusiast of Lionel Trains. Written by B. Greenberg and M. Klein, and published by MDK, Inc. in 1984, this paperback book provides a detailed and informative guide to the O and O-27 Trains from Lionel. With 245 pages of information, this guide covers everything from the history of the trains to their technical specifications and operating procedures. The book is written in English and is perfect for anyone interested in model railroads and trains, in general. So, whether you're a seasoned collector or just starting out, this guide is sure to provide you with a wealth of information about Lionel Trains.