First book this week was Pottermore Presents Hogwarts: An Incomplete & Unreliable Guide, a fairly silly bit of a book about the school in the Harry Potter series of books. Fun for someone who's read the series, useless for anyone else.
Next was Osprey Vanguard #29: The M47 & M48 Patton Tanks a very similar book to one that I've read in the past from their New Vanguard series, it discusses a 1960s state-of-the-art tank. I remember making a plastic model of this one, for what it's worth.
Lastly I read Osprey Vanguard #30: Polish Armour 1939 – 45. It discusses not only the tanks the Poles had on hand when they were invaded by Germany in 1939, but also the tanks that they later got from the Allies later. Portions of the book details how they managed to get out of Eastern Europe and join the fight on the Western Theater of Operations by getting through Iran. Wild! I found this one particularly interesting for that reason.