Instruct: Classify Amazon reviews into positive or negative sentiment
Query: THE Book to Own on The Valley Campaign

This is quite simply THE book to buy on the Valley Campaign. Tanner first wrote this book in the 1970's and updated it in 1996 after new light had been shed on the subject. I have been told by more than one person that this is the one book you need to read to understand the campaign. After finishing the book, I am absolutely convinced that this is the one book you must own on this campaign. Tanner covers everything from the Stonewall Brigade's reentry into the Valley all the way through the trip to Richmond prior to the Seven Days. Tanner analyses the action instead of just reciting what happened. He also offers more than one viewpoint in certain controversial areas of the Campaign. All in all a great book, and one that I'm glad to have in my collection. 599 pp, 14 maps