Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Necessary Reference for the collector

This book by the World's foremost authority is required reading for anyone beginning or adding to their collection. It discusses techniques, medium, and has important information to aid in putting together a beautiful collection.Individual artists are discussed and their works evaluated.The only thing better than this book and Ms. Foskett's others would be to have her to consult with on collecting and evaluating this lovely little art form