Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Avoid at all costs

I found this book a terrible disappointment. The author jumps back and forth through time to the point of complete confusion. It is also poorly researched and inaccurate. Imagine my surprise when the author states that Fort Donnelson was positioned near the point where the Cumberland River empties into the Mississippi River. The Cumberland river empties into the Ohio River and no where near where Fort Donnelson was located. The author, a southerner, wants the reader to believe that the Civil War was caused by social discord between Puritans and Celts. Slavery, in his view, slavery was not a cause at all.