Instruct: Classify an Amazon review into positive or negative sentiment.
Query: List of potteries is incomplete

If you are a collector of Arts and Crafts Art pottery this book is not for you. Of the many collectible potteries for this movement (i.e. Rookwood, Grueby, Weller, Hull, Tiffany, Pewabic, Teco, Newcomb, Ohr, Chelsea, Fulper, Roseville and Van Briggle) only two (Roseville and Van Briggle) are included in this book.