By James Swanson. The demises of 1) the Confederacy, and 2) Abraham Lincoln, drawing heavily on contemporary sources. (The audiobook is read by Richard "John Boy Walton" Thomas, of all people, but it's pretty good.)
This is a very nice reading copy in hardcover: very mild shelfwear, no dog-ears or writing, page toning that may in fact be a publishers'/printing choice to use "older-looking" stock.