The question I am asked most frequently is what books I recommend for further reading on the topics I write about. There are a trove of fascinating true tales of espionage out there, and I want to share with you seven more books that are sure to hold your interest and take you down new paths.

The incredible story of three brave and resourceful CIA technicians incarcerated for years by Fidel Castro, in the infamous Presidio Modelo prison. There, they undermined the guard force and the Castro regime alike again and again from inside the walls, using their engineering skills, personal courage and American spirit.