This “engrossing study” of invisible ink reveals 2,000 years of scoundrels, heroes and their ingenious methods for concealing messages (Kirkus). In Prisoner
Sixteen-year-old Liza becomes a lady's maid to Princess Victoria and finds that the gossipy world of the palace servants gives her the chance to determine her o
'All the power and intrigue of a cinematic thriller ... immersive, dramatic, and historically edifying' Kirkus Moscow in the late 1970s: one by one, CIA assets
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
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