From the back cover:
GEORGE BLAKE. An English agent spying on Russia until he was caught -- accused of being a double agent for the Russians! After five years in prison he excaped and was never heard from again.
BELLE BOYD. A young southern girl who became the most effective Confederate spy of the Civil War.
GARY POWERS. One of America's most famous spies -- until he was shot down over Russia. He was imprisoned for then years, but returned to the U.S. when he was exchanged for the notorious Russian spy, Rudolf Abel.
Hard to believe? These are true tales of adventure, tales of daring men and women who risked their lives for their countries -- or sometimes just for excitement! Mata Hari, Rudolf Abel, Victor Sorge, and others. Find out about their special techniques, how they get secret information, how they pass it along, and how they deceive their enemies.