Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good maps, bad research

This book has a good collection of maps and does a fair job of tracking troop movements but has a definite biased slant and innaccurately stresses slavery as the major cause of the war, even though this didn't become a real issue until 1862, when Lincoln issued the Emancipation Proclamation (which is a masterpiece of doublespeak that actually freed NO ONE AT ALL, since Lincoln had no authority over the Confederacy, and specifically excluded northern states). There is an emphasis on negative Southern acts, such as Longstreet's foraging mission in North Carolina, while northern atrocities are glossed over. An impressive piece of historical bias and revisionist history, and only the maps are of interest. Most of those are available for free from the National Archives, just to name one source, or other better-written works, so don't waste your money.