Either this book is very complicated, or I'm just old and all my synapses have faded. Two thirds of the way through I had to look up the story on wikipedia because I was having a terrible time keeping track of who was who.

At the same time, when I knew what was going on, I found it pretty interesting. Smiley's a cool character, and it's fascinating to see his cool, methodical approach to spywork.

Overall, this book would be better with a character key in the front.