Instruct: Classify a given review into positive or negative sentiment.
Query: Blood on the Moon

This is a very well written and comprehensive account of the assasination of Abraham Lincoln. All of the sources used by the author are authenticated. The basis of the book are reports, trial transcripts, letters and other archived documents. The narrative is very descriptive, detailed and an easy read. Even though this is a lengthy book, it will hold your interest because it is so well organized and written.