1. Richmond Must Fall: The Richmond-Petersburg Campaign, October 1864 by Hampton Newsome (Kent State UP, 2013).
Newsome covers the series of October 1864 battles fought east of Richmond and south of Petersburg while also reminding readers how mindful both sides were of how their results might affect the following month's presidential election.
2. The Battle of Pickett's Mill: Along the Dead Line by Brad Butkovich (The History Pr, 2013).
This book looks like a solid overview of the battle, accompanied by numerous and detailed maps.
3. Confederate General William "Extra Billy" Smith: From Virginia's Statehouse to Gettysburg Scapegoat by Scott L. Mingus Sr. (Savas Beatie, 2013).
Colorful political generals can usually attract a biographer or two, but Mingus is the first to attempt a full treatment of the man most famous for his good old boy corruption and his controversial place in Gettysburg lore.
4. Suppliers to the Confederacy: British Imported Arms and Accoutrements by Craig L. Barry and David C. Burt (Schiffer Pub, 2013).
With over 150 color photos, this is a beautifully presented historical catalog of British manufactured pistols, rifles, and accoutrements secreted through the blockade for the benefit of Confederate arms.