And espionage has arts

How to discover a spy? The answer to this question requires first knowing who the spy is and how he works. What are the secrets of espionage and the methods they use to gather information? How can one spy destroy an entire country? What are information wars and what is the future of the world? And what do intelligence men do to confront espionage? Number of pages: 220. Year of publication: 2016. Publisher: Dar Don for Publishing and Distribution.