Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is a really cool book...

That's what literally hundreds of buyers have told me. And naturally I agree with them rather than with Mr Plimpton's negative review. He misses the point to the way the book is presented. Most people, including me, have a problem putting time periods from previous centuries in their precise context. That was the reason for including parallel occurrences. For the mis-spelled name, I am sorry.