1. The Battle of Carthage, Missouri: First Trans-Mississippi Conflict of the Civil War by Kenneth E. Burchett (McFarland, 2012).
See my Q&A with the author.
2. Command Conflicts in Grant's Overland Campaign: Ambition and Animosity in the Army of the Potomac by Diane Monroe Smith (McFarland, 2012).
This study considers the role of V Corps (presumably through the lens of leadership clashes and failures) during the Overland Campaign and the bungled initial Petersburg assaults.
3. Avenging Angel: John Brown's Raid on Harpers Ferry 1859 by Ron Field (Osprey, 2012).
One of the latest volumes from the publisher's Raid series, this one relates the story of Brown's Raid through narrative (80 pages) and Osprey's usual collection of photos, maps, orders of battle, original artwork, and drawings.
4. Ulysses S. Grant by Mark Lardas (Osprey, 2012).
Part of Osprey's Command series, a brief (65 pages) overview of Grant's military career.
UNC also sent a prepub copy of Earl Hess's Kennesaw Mountain: Sherman, Johnston, and the Atlanta Campaign. Look for it in April '13.