1. Dakota Dawn: The Decisive First Week of the Sioux Uprising, August 17-24, 1862 by Gregory F. Michno (Savas Beatie, 2011).
For quite a while, I've been hoping to find a book detailing the Great Sioux Uprising fighting at places like Redwood Ferry, New Ulm, and Fort Ridgely, and it looks like this one fits the bill. I hope to have an author Q&A with Michno posted in the near future.
2. Great Civil War Heroes and Their Battles by Walton Rawls (Abbeville Press, 2011).
A paperback reprint of 1985 edition. This is an introductory study of 50 Union and Confederate generals and admirals and their battles, supported by maps and drawings. It boasts the complete series of Kurz & Allison prints (if you like that sort of thing).