Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Reference Aid

I purchase many books from Amazon & Amazon Kindle. I rely a lot on my fellow readers to guide me in my purchase decisions. I ordered Stalins Slave Ships for My Kindle I downloaded the free introductory read. The free introductory read was enjoyable reading, but when I dowloaded the rest it beagan to read in an encyclopedic manner about the Gulag fleet. Therefore I would recommend this book to those who need to look up Gulag ships on a reference basis. I have one I would sell cheap, however I am to lazy to do the work involved.