1. Galveston and the Civil War: An Island City in the Maelstrom by James M. Schmidt (The Hist Pr, 2012).
Edward Cotham has gifted us the military side of Civil War Galveston and now Jim Schmidt delves into a wider set of issues.
2. To Antietam Creek: The Maryland Campaign of September 1862 by D. Scott Hartwig (Johns Hopkins UP, 2012).
I did not know until this year that Scott Hartwig was working on a Maryland Campaign mega-history. This first volume, covering origins through September 16, is a huge book, its narrative, maps, appendices, and notes filling around 800 pages. The Sesquicentennial has been far kinder to some subjects than others and Antietam students have been among the best treated. I can't imagine a serious Antietam reader without this one.
3. Battlefields of Honor: American Civil War Reenactors by Jeannine Stein and Mark Elson (Merrell, 2012).
This is a text and photographic study of reenacting, one that attempts to replicate the look and feel of period images.