INTELLIGENCE
Handbook Of Intelligence Studies
History Of Cryptography And Cryptanalysis
Intelligence Analysis For Tomorrow
Introduction To Modern Cryptography
Military Intelligence And The Arab Revolt
National Security And Counter Intelligence
National Security Intelligence
Open Source Intelligence Methods And Tools
Secret Language Codes, Tricks, Spies, Thieves, And Symbols
The Illustrated Book Of Signs And Symbols
The Oxford Handbook Of National Security Intelligence
The Secret Language Of Symbols
The Secret World – A History Of Intelligence
The Soviet Union – A Country Study
GCHQ: The Uncensored Story Of Britain’s Most Secret Intelligence Agency
Intelligence And Military Operations
Human Intelligence Collector Operations
Handbook Of Warning Intelligence