Search for "Behind the Enigma: The Authorized History of Gchq, Britain's Secret Cyber-Intelligence Agency by John Ferris"

The Secret History

Donna Tartt


The Secret World: A History of Intelligence

Christopher Andrew


The Enigma

Jodi Ellen Malpas


Dark Territory: The Secret History of Cyber War

Fred Kaplan


Intelligence: From Secrets to Policy

Mark M. Lowenthal


Secrets Left Behind

Shannon Redmon


The CIA PSYOP Manual - Psychological Operations in Guerrilla...

Central Intelligence Agency and Carlile Media


A Little Ferry Tale

Chad Otis


Intelligence: From Secrets to Policy

Mark M. Lowenthal


CIA World Factbook

Central Intelligence Agency


Mistborn: Secret History

Brandon Sanderson


The Problem of Secret Intelligence

Kjetil Anders Hatlebrekke


The Enigma of the Owl: An Illustrated Natural History

David Tipling and Mike Unwin


Mr. Ferris and His Wheel

Kathryn Gibbs Davis and Gilbert Ford


Julieta and the Diamond Enigma

Luisana Duarte Armendáriz


The Enigma Game

Elizabeth Wein