The #1 expert on intelligence and espionage, Jeffrey T. Richelson, provides a fascinating panorama of 20th-century spycraft. These men were known only to a select few, but they changed history, influencing the outcome of battles and crises, changing the strategy of diplomacy . In this book, brilliant intelligence officers - from Richard Sorge to Eli Cohen and Oleg Penkovsky - become the main characters in a fascinating study of the spy craft of the 20th century. 12+ (Not recommended for children under 12 years of age).