The books I've really enjoyed so far this month:
1. Heartless by Gail Carriger -- the 4th in the Parasol Protectorate series, set in Victorian England about Alexia Tarabotti who has no soul which gives her power over werewolves and vampires. At one point, I had to tweet the author about her great plotting and characters. Within a few pages, Ms. Carriger threw in a red herring; revealed the truth about a doomed love affair that broke my heart; a flirtation between two minor characters that were in character that made me cringe; then broke my heart again with 2 other characters. So well done!
2. Mortal Engines by Philip Reeve -- the first of a 4 book series in a post-apocalyptic Earth far in the future where cities are built in tiers and mounted on wheels where they roam around hunting and eating other cities and towns. They call it Municipal Darwinism. They're opposed by the Anti-Tractionists who believe that cities should be stationary. Very inventive and fun.
I've pre-ordered Goliath by Scott Westerfeld, the 3rd in the Leviathan series. It's set during WWI between the Darwinists (genetic engineering) and the Clankers (steampowered machines with legs instead of wheels).
What these all have in common are action, adventure, and romance.
Another book was A Life in Stitches by Rachael Herron, aka Yarn-a-go-go. It's a series of essays about her life, really the important people and events in her life, that have knitted pieces associated with them. For example, her quest to knit her own wedding dress, but really it's about her wedding to Lala and what weddings and marriage are really about. Another book that mad me smile and tear-up. Lovely book.
So far, September's been full of good books.