Operation Mincemeat: How a Dead Man and a Bizarre Plan Fooled the Nazis and Assured an Allied Victory
Rogue Heroes: The History of the SAS, Britain's Secret Special Forces Unit That Sabotaged the Nazis and Changed the Nature of War
All four books in "The Thursday Murder Club" series
Many of the John Le Carre spy novels, specifically the George Smiley series
ALL of the Michael Lewis books (there's not a bad one among them - the Undoing Project was a surprise home run for me)
13 Hours: The Inside Account of What Really Happened in Benghazi
The Comfort Crisis: Embrace Discomfort to Reclaim Your Wild, Happy, Healthy Self
The Rosie Project: A Novel (this one was fantastic)
Seabiscuit