Just finished Victory of Eagles by Naiomi Novik. 
I'm still enjoying the heck out of this series. I like it enough that, even though I thought the third book was a little slow, when the fifth book came out in hardback I broke my no-hard-back rule and bought it rather than wait. I think I'd like to find the whole series in hardcover one day, but it's going to run to some money, since I'm not sure all the books were published hard cover in the US.
One of the things I like about these books is that unlike so many series the characters change and evolve over the course of the books, and the heroes don't always win, or get away with flaunting authority or social convention, just because they are doing what the modern 21st century reader might think is the right thing to do. Temeraire, a black Celestial dragon the size of a battleship is both a loyal member of the British armed services, and a rabble rousing political reformer as radical as Karl Marx. He is, earnest and often naive, which makes him very endearing, but even though he still tends to win arguments because people don't argue with enormous dragons, he is developing some political savvy. He still sees most of the world as black and white with the right answer to any problem obvious. The contrast between him and his human companion William Laurence, who is and aristocrat from the Noblesse Oblige tradition and a Ship's captain in the British Navy before their paths crossed, makes for some the the tension in the plot. Although the books are set at the time of the Napoleonic wars, and are for the most part swashbuckling action-adventures it is not too hard to see that Temeraire's "obvious" answers to things like basic rights for any members of a society, management based on status rather than merit, and he compensation due people who fight for their country, have echoes in the real world today. Which, is part of what makes the books so fun.
