[ The Maps of Antietam: An Atlas of the Antietam (Sharpsburg) Campaign, Including the Battle of South Mountain, September 2 - 20, 1862 by Bradley M. Gottfried (Savas Beatie, 2012). Hardcover, 124 color maps, appendices, notes, bibliography, index. 345 pp. ISBN:978-1-611210-86-6 $39.95 ]
The series has definitely matured over time. The most helpful customer suggestions (e.g. the lack of time interval estimates in the first Gettysburg edition) have been applied to subsequent volumes. Initially, I wasn't sold on the necessity to go full color, but this book, especially, with its myriad of terrain features, shouts out for the visual contrast that only color can offer. The transcendent beauty and utility of the work of the field's best cartographers, exemplified by guys like Steven Stanley, can unreasonably raise reader expectations, but Gottfried's mapmaking skills are nothing to scoff at and have definitely improved [sample pdf]. Gottfried's writing also gets better with each book, and it is no mean feat to have to cram descriptions of events displaying such a wide variety of complexity into a fixed amount of space, but a nagging number of errors still dog the text and titles. Another complaint is the lack of true elevation contour lines. These are not terribly essential for the Antietam battlefield, but the generic hash lines representing heights, while a mostly adequate compromise, do not really effectively portray the vertical ruggedness of the South Mountain and Harpers Ferry battlefields.
The need for better proofing aside, the narrative sections of the atlas, in addition to their role as 'map captions on steroids', are gleaned from the latest scholarship and together comprise a fine running history of the campaign and its many battles. The book is a must-have for any Antietam/Sharpsburg reference library, but even those with only a casual interest in the great battle -- but an abiding love of Civil War maps (like me) -- will often find themselves absorbed to the extent of wondering where the hours went! Future volumes are greatly anticipated and word is already out that the next atlas will cover the 1863 post-Gettysburg campaigns in the eastern theater.
Links to reviews of earlier Savas Beatie Military Map Series titles:
Vol. 1 - The Maps of Gettysburg
Vol. 2 - The Maps of First Bull Run
Vol. 3 - The Maps of Chickamauga