I first read this book many years ago when I knew litle about the Napoleonic era, and I greatly appreciated the depth of its information and its ability to convey complex scenarios with clarity and style. The reader is left at the end of the book with a very solid understanding of how war was conducted on land during the Napoleonic era, how it differed from the previous styles of warfare, how the various armies from each country differed conceptually and how this dettermined their fighting capabilities, etc.
The good thing is that this is NOT a history book about the campaigns of the Napoleonic Wars ( there are so many of those already ) or yet another book about how Napoleon or Wellington did this or that, but instead it is a very insightful reference book as to why war was waged as it was and what were the changes that took us there. It includes interesting complementary chapters on medical services, siege warfare, etc.
Another good point is that it is NOT writen by a French author ( "Napoleon was a great European and a honest supporter of democracy, but rather missunderstood outside France" tematic line ) NOR by a British author ( "The British Army was great all the time and its oponents were just amateurs in comparison" usual stuff ), so we are spared all the national historical pride that almost always manages to creep into books on this matter. Still today, after having read over the years many more books on this chapter of our European History, I regard it as one of the best. I think they should come up with a new edition of it.