Incoming Resources
- Active measures, the secret history of disinformation and political warfare, Thomas Rid
- Ultimate spy, H. Keith Melton ; forewords by Richard Helms and Markus Wolf
- In the enemy's house, the secret saga of the FBI agent and the code breaker who caught the Russian spies, Howard Blum
- The greatest spy stories ever told, edited by Lamar Underwood
- Spies, double agents, and traitors, by Susan K. Mitchell
- Ultimate spy, H. Keith Melton ; forewords by Richard Helms and Markus Wolf
- The master spy handbook, help our intrepid hero use gadgets, codes & top-secret tactics to save the world from evildoers, Rain Newcomb ; illustrated by Jason Chin
- The secret agent, and other spy kids, by Allan Zullo
- Secret spy codes and messages, Christy Peterson
- Spies revealed, written by Clive Gifford
- Ghosts of Honolulu, a Japanese spy, a Japanese American spy hunter, and the untold story of Pearl Harbor, Mark Harmon, Leon Carroll, Jr.
- The ultimate spy book, H. Keith Melton ; forewords by William E. Colby and Oleg Kalugin
- Spooked, the Trump dossier, Black Cube, and the rise of private spies, Barry Meier