Operation Mincemeat. Ben Macintyre. 2021.

Operation Mincemeat was the most successful wartime deception ever attempted, and the strangest. It hoodwinked the Nazi espionage chiefs, sent German troops hurtling in the wrong direction and saved thousands of lives by deploying a secret argent who was different, in one crucial respect, from any spy before or since: he was dead. His mission: to convince the Germans that instead of attacking Sicily, the Allied armies planned to invade Greece.