The title of this book is misleading. It should be called Napoleon's Diplomacy. I bought it thinking it was a discussion of Napoleon's battles, his tactics, strategy, etc. Instead, it is a discourse on Napoleon's political machinations with allies and enemies, domestic and foreign. Battles are barely mentioned.
Nevertheless, this book is a great resource. Esdaile's scholarly work is painstakingly detailed about the ever-changing alliances between European countries during Napoleon's rein -- so ever-changing it was hard to keep track of who was what at any given time. It's a good addition to the library of any military historian.