Incoming Resources
- The secret state, a history of intelligence and espionage, Colonel John Hughes-Wilson
- Facts and fears, hard truths from a life in intelligence, James R. Clapper with Trey Brown
- A higher loyalty, truth, lies, and leadership, James Comey
- The burglary, the discovery of J. Edgar Hoover's secret FBI, Betty Medsger
- The assault on intelligence, American national security in an age of lies, Michael V. Hayden
- The double-cross system in the war of 1939 to 1945, by J.C. Masterman
- The compatriots, the brutal and chaotic history of Russia's exiles, emigrés, and agents abroad, Andrei Soldatov and Irina Borogan
- Permanent record, Edward Snowden
- Information hunters, when librarians, soldiers, and spies banded together in World War II Europe, Kathy Peiss
- Killing Eve, created by Phoebe Waller-Bridge ; written by Phoebe Waller-Bridge, Luke Jennings, George Kay, Vicky Jones, Rob Williams ; directed by Jon East, Damon Thomas, Harry Bradbeer
- Lincoln's spies, Douglas Waller
- Castro's secrets, the CIA and Cuba's intelligence machine, Brian Latell
- Code warriors, NSA's codebreakers and the secret intelligence war against the Soviet Union, Stephen Budiansky