Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Very Good Read

A well researched, exciting read. You've got a story that everyone knows its ending, but you keep turning the pages to see what happens next. What can I say that will inspire someone to read this book? It is a lengthy work through which you will race. A marvelous study of all that was known about a most diabolical personality and the human wreckage he left in his wake.