The "Spy Book: The Encyclopedia of Espionage" by Norman Polmer and Thomas B. Allen is a comprehensive and informative guide covering a wide range of topics related to intelligence and espionage. Published by Random House Information Group in 1996, this hardcover book features 608 pages filled with details about various spy activities, techniques, and individuals. Illustrated with images, this book is a valuable resource for those interested in true crime, political science, and the world of espionage. With a length of 9.4 inches and a width of 7.5 inches, this book is a substantial addition to any collection focused on the exciting and mysterious world of espionage.