Five top nonfiction books about espionage

Charles Stross has won two Hugo Awards and been nominated twelve times. He has also won the Locus Award for Best Novel, the Locus Award for Best Novella, and has been shortlisted for the Arthur C. Clarke and Nebula Awards. His latest book is Empire Games. One of the author's five recommended nonfiction books about espionage, as shared at Tor.com:The Agency: The Rise and Decline of the CIA by John