Just finished....James Hunt biography by Maurice Hamilton. A Christmas gift. A good read despite having already read a lot about him.
Before that Agent Zigzag by Ben Macintyre. Telling the true story of Eddie Chapman, a dubious character who was recruited by Nazi Germany and parachuted into Britain. He immediately gave himself up and became a double agent.
The Eddie Chapman story was on tv a couple of years ago, amazing story or the complex nature of spies in occupied Europe.