Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Interesting and informative book on repairing pottery

Repairing Pottery and Porcelain is an in-depth guide to repairing pottery and porcelain. It gets pretty technical at times, but it is written in such a way that a beginner can easily learn the art of pottery repair. Instead of offering only one solution to a problem (i.e. cleaning), it offers many, explaining the differences in each.