Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good Book? Yar!

Errol Flynn, Pirates of the Caribbean and Treasure Island and numerous other cultural sources have given us a popular and romantic version of the life of a pirate. But what were they really like? Did pirates really make people walk the plank? What about hidden treasures and X marking the spot?Under the Black Flag takes an in-depth look at the great age of piracy, focusing mostly on the Caribbean, Eastern United States, the African coastline and Madagascar (Mediteranean corsairs are only briefly touched upon). Major (or rather infamous) pirates such as Calico Jack, Blackbeard, Bonnet, Roberts and minor ones of note are discussed in-depth as examples as to how piracy really was using source material contrasted with the common stereotypes. The book is extremely fascinating and honest, and a book anyone should read who is fascinated by pirates.