Incoming Resources
- Secrets of the U.S. Civil War, by Linda LeBoutillier
- Orders to kill, the Putin regime and political murder, Amy Knight
- D-Day girls, the spies who armed the resistance, sabotaged the Nazis, and helped win World War II, by Sarah Rose
- Fighting to lose, how the German secret intelligence service helped the Allies win the Second World War, John Bryden
- The first conspiracy, the secret plot to kill George Washington, Brad Meltzer and Josh Mensch
- Code name, Lise : the true story of World War II's most highly decorated spy, Larry Loftis
- They fought alone, the true story of the Starr Brothers, British secret agents in Nazi-occupied France, Charles Glass
- Scholars of mayhem, my father's secret war in Nazi-occupied France, Daniel C. Guiet and Timothy K. Smith
- My life as a spy, investigations in a secret police file, Katherine Verdery
- Secrets of World War I, by Sean McCollum