His first book is on espionage measures, intelligence theory and practice in ancient China and consists of an introduction and several topics on espionage, secrecy and countermeasures, covert activities and psychological warfare, theories of evaluation and intelligence, personality, intelligence process implementation.

The second book deals with intelligence, from secrecy to politics and includes an introduction and several topics on the nature of intelligence, the development of US intelligence agencies, the intelligence process who does what for whom?

The third book is about the art of espionage. It contains an introduction and several topics: Who is spying?, prominent espionage activities, US security agencies, Moscow, the city of spies, sabotage, message hiding equipment, secret meeting places, weapons.