The Time-Life Civil War series is one of the best introductory sets one can invest in to get a good grasp of the War Between the States. That said, however, the set does have a decided bias towards the Eastern, Virginia theater of the war, and tends to skimp a bit on the campaigns and personalities in the West. This volume, covering the war in the West from Tullahoma to the end of the fighting around Chattanooga, as well as the Knoxville Campaign, is a well written, if cursory, examination of the decisive period, in the decisive theater, of the American Civil War. While the book is light on analysis, as are all the volumes, it is rich with narrative flair and contains numerous first hand accounts, as well as possessing numerous illustrations. Easily, however, the best part of the whole series is the fantastic campaign and battle maps provided in each volume. Few military history works are so well endowed with cartography as this set. Sadly, though, this volume was a bit lacking in the map department, a departure for the series to be sure. And seeing as how these series of operations were amongst the most complex of the entire war, I knocked the volume down a star because of the lack of normally well done maps. This isn't a book to be read for research or for a deep understanding of the topic. It is to be enjoyed as part of the overall set, and in that it is a very good volume.
Like the other books in the Time Life Civil War series, this book is a pretty good overview of the Chickamauga and Chattanooga campaigns. However, it has far less detail than most books that I've read (especially David Powell's Chickamauga trilogy). This book probably works best for Civil War newcomers.