The tools in a spy's arsenal are more varied than you might think. But they all come under one name: Tradecraft.

In our eleventh round of insights from the world of espionage, Rhiannon Neads looks back on Medieval spymasters, high-octane extractions, and the undercover heroes of WW2.

From SPYSCAPE, the HQ of secrets. A Cup And Nuzzle production. Series producer: Joe Foley. Produced by Alex Burnard. Music by Nick Ryan.

Learn more about your ad choices. Visit megaphone.fm/adchoices