Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Excellent Spotter's Guide

Part of a now hard-to-find series of aircraft recognition guides put out by The Aeroplane during World War II. It includes information on the 32 chief types of British monoplanes in service with the RAF at the time. Along with photographs and silhouettes of the aircraft are performance figures, weights, armament, and general physical data. A great piece of history to own, as well as an excellent guide for warbird and airshow enthusiasts.