This hardcover book by James Dunkin is a valuable resource for anyone interested in 2.5 cc model engines. It provides a comprehensive reference for enthusiasts and professionals alike, with detailed information on various aspects of these engines. The book is intended for adult readers and is written in English. The second edition of this book, also known as the International Reference Book of 2.5 cc model engines, Edition II, is a must-have for anyone involved in the toy and hobby industry. It contains valuable insights and features that make it an ideal resource for model railroads and trains. Whether you're a collector or a model builder, this book will provide you with the information you need to enhance your experience.