Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Merchant Fleets #19 By Duncan Haws

The book is written like the guides that are carried on the bridge of modern day sailing vessels. It can be compared to the Janes' Serious of books used by personnel in identifying vessels. There is a great history of the development of the White Star Line and the vessels of the historic line. It is a must for any Titanic History buff. Great Read.