The Jones-Imboden Raid: The Confederate Attempt to Destroy the Baltimore & Ohio Railroad and Retake West Virginia by Darrell L. Collins (McFarland, 2007).
Mr. Lincoln's Brown Water Navy: The Mississippi Squadron -- by Gary D. Joiner (Rowman & Littlefield Publishers, 2007).
Lincoln: The Presidential Archives - Intimate Photographs, Personal Letters, and Documents that Changed History -- by Chuck Wills (DK Publishing, 2007). This book is similar to William Miller's cartography study (reviewed here) in the sense that it is an oversize text and photo publication that also incorporates pockets holding removable facsimile documents.
Trench Warfare under Grant and Lee: Field Fortifications in the Overland Campaign -- by Earl J. Hess (University of North Carolina Press, 2007). This is the much anticipated second volume of Hess's 3-part series examining field fortifications in the eastern theater. Also, in what seems to be a Fall/Winter tradition among many of the university presses, UNC is promoting a big sale. Looks like it includes some new books as well (link to CW section).
They Went into the Fight Cheering!: Confederate Conscription in North Carolina -- by Walter Hilderman III (Parkway Book Publishers, 2005).