Restarting another thread from the original tavern.
I just finished Most Secret and Confidential: Intelligence in the Age of Nelson. (affiliate link) It was good, but definitely not a book on the Age of Sail or Age of Nelson that I would recommend for beginners on the topic. It’s best read when you already have a solid understanding of the wars from 1792-1815, and the associated naval battles. The focus on intelligence is quite interesting, and gives you a different perspective on the challenges of the time period. I did find it to be a bit random and disjointed at times; I suppose I prefer history books that read more like a story with clearer chronology. Still a good read though.