This “engrossing study” of invisible ink reveals 2,000 years of scoundrels, heroes and their ingenious methods for concealing messages (Kirkus). In Prisoner

The thrilling, true story of the race to find a leak in the United States Embassy in Moscow—before more American assets are rounded up and killed. Foreword by

Reveals the formidable organization of intelligence outsourcing that has developed between the U.S. government and private companies since 9/11, in a report tha

A concise introduction to the history and methods of espionage, illustrated by spy stories from antiquity to today’s high-tech world. Espionage is one of the

Lucy lost Jack years ago. Jack Hunter's father was a drunk and a criminal, and Lucy Hamblin's father believed the apple lay near the tree. When her father forba