by Ben McIntyre, Kindle Version, 2018, Broadway Books, Reprint edition

This is the story of Oleg Gordievsky, a KGB agent who began providing information to MI6.  The story is intriguing, especially since I had never heard of this individual and the extraordinary impact of the information he provided.  The author makes the case that his information may have prevented a nuclear confrontation between the U.S. and the USSR and also may have led to the trust that Reagan and Gorbachev seemed to instantly feel when they first met.

On the whole, the book was an interesting read, although it bogged down a bit, not because the the author’s treatment, but there were times when not much was happening.  Toward the end, however, it got pretty exciting due to events that I won’t relate here as it would spoil it for a reader.