Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A wonderful book on Great Lakes Steamships!

For those intrigued with American marine technology this is "must buy". As a child growing up near Detroit in the 1940s these huge ships were only in my distant memories until I read Plowdens' narratives and saw the stunning photographs of the ships, the living spaces, the engines and firerooms, scenes underway, and the crew. An excellent work!