This hardcover ninth revised edition of Small Arms of the World by Joseph E. Smith and W. H. B. Smith is the perfect reference for adults interested in the history and engineering of firearms. The book is 768 pages long, measuring 9 inches in length, 11 inches in height, and 2 inches in width, and weighing 25 ounces. With its dust jacket and illustrations, the book is also great for collectors or anyone interested in the topic of weapons.