First was Osprey Vanguard #20: The Tiger Tanks; I think I see why they stopped the Vanguard series and moved onto the New Vanguard series. The former were seriously technical while the latter has a bit more history to them. In any case I like the newer series better in general. This one discusses the Tiger tanks pretty well, German from WWII.
Next I read Herbs: A Global History, there's a bit of history here, but mostly this is a list of herbs and a discussion of the difference between an herb and a spice.
Then it was Osprey Vanguard #21: The PzKpfw V Panther. More German tanks. The Tigers were heavy tanks, while the Panthers were medium. Apparently mechanically unreliable, unfortunately for those who had to drive them.
And that was all I had time for. I did take the time to update Goodreads as to all the various books I'm reading partially. One thing I did do was touch on every single book in the Currently Reading stack; this may be why I didn't finish one or two more books this week.