I have not read the book. My go to book for the Atlanta Campaign is "The Campaign for Atlanta", William R. Scaife, McNaughton & Gunn, Saline, Michigan, 1993. It's a concise document with first person excerpts and exceptional maps of the entire campaign's battles from Rocky Face Ridge to Jonesboro. At the end, it includes a short segment on the "Battle of Allatoona Pass". I will use it latter this month (October 2021) when I attempt to hike up Rocky Face Ridge, that is if I feel up to it; pretty steep.