This note does not contain major spoilers for the book.

Non-fiction (there are probably people in the world who haven't already recognized the author and title on this one, I guess), a study of military command. He talks in some detail about the command styles of Alexander, Wellington, Grant, and Hitler, and then does some summing up.

I found the historical studies more interesting than the summing up. The historical studies were fascinating, though. I'd say he largely views Alexander and Hitler as failures as commanders (or at least deeply flawed), and Wellington and Grant as successes. And he brings me to agree. Can't ask more than that, can I?