Incoming Resources
- Spies of the American Revolution, an interactive espionage adventure, by Elizabeth Raum ; consultant, Richard Bell, PhD, Associate Professor of History, University of Maryland, College Park
- KGB CIA, Celina Bledowska and Jonathan Bloch
- American women spies of World War II, Simone Payment
- Secret spy codes and messages, Christy Peterson
- Top secret, spies, codes, capers, gadgets, and classified cases revealed, Crispin Boyer & Suzanne Zimbler
- Spies of the Civil War, an interactive history adventure, by Michael Burgan
- Enemies of the state, directed and produced by Sonia Kennebeck