Instruct: Classify Amazon reviews into positive or negative sentiment
Query: interesting but needs rewriting

I'm halfway through this book, and think it should have been edited/proofread..radically. The author has gathered much information on Stalin's life and the Terror in the Soviet Union, but he is prone to indefinite references which force one to read and reread some sentences to understand them. The narrative is disconnected at times, and sometimes it's impossible to be sure who is doing what to whom. If one knows something about Soviet history the book provides some lurid details, and confirmation (as if anyone needed it) that Stalin was an unparalleled villain surrounded by thugs. Perhaps its greatest value is in showing what might happen if the Islamo-fascists succeed in Europe: they have the same modus operandi as the Bolsheviks, who used mass slaughter as a societal panacea.