In no particular order:
The Middle East: A Brief History of the Last 2,000 Years by Bernard Lewis. I’ve already started this, I just need to finish it.
The Mongoliad: Book One by EVERYONE, but mostly because Neal Stephenson.
Glamour in Glass by Mary Robinette Kowal. Her first book Shades of Milk and Honey was a fun read, like the best Jane Austen fanfic you ever read, I expect this to be equally fun.
The Witches of Karres by James H. Schmitz.
The Wizard of Karres by Mercedes Lackey, Eric Flint and Dave Freer. Because Baen.
War Maid’s Choice: N/A (The Bahzell) by David Weber. When it comes out next month.