The first book I finished was a Sociological thing called Jennifer Government by Max Barry, which deals with a world where corporations have extreme power, but governments' powers have become very limited. It's a weird way of looking at things and was handled pretty well.
Next was Osprey Elite #215: British Light Infantry & Rifle Tactics of the Napoleonic Wars. I expected to learn a bit from this book, especially in light of my love of Bernard Cornwell's Sharpe series of novels, and I did. One of the better Ospreys.
Then, Osprey New Vanguard #230: Imperial Roman Warships 27 BC – 193 AD, not quite as engaging as the previous book. Read it, not retaining much...
Finally I also read Osprey Fortress #86: English Castles 1200 - 1300. There's a lot of terrific photography of those castles that still stand, and there's a number of maps that lay out the structure of a number of others. Pretty fascinating.
On to the next week!