The Great Game
The Myth and Reality of Espionage (2004)
by Frederick P. Hitz (1939-)
This is a mildly entertaining book, for those interested in spy fiction. The author worked for the CIA and is now a professor. I presume this book is required reading for his students.
His approach is interesting: He devotes each chapter to a single aspect of espionage (e.g., recruitment, tradecraft, sex, betrayal). He first examines how it has been treated in fiction, then examines real-world cases that illustrate it.
I was amused to find the epigraph for the first chapter was a quote from Kim, which I had just read.