Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A well done history

As the Pinkertons were the be all and end all for quite some time, seeing a peck into many of their cases as a history buff and mystery lover was cool and offered some nice insight.The stories being crimes that really happened and the methods they used which in some cases were ahead of their time to catch people who others couldn't.Fans of true crime stories should check this out, I believe it is even free on the Kindle.B