Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The quality of this book is appalling

As far as regards content, this is a fine book. It's a textbook, and it does that job.I am commenting on the horrible cheap production: the publisher has effectively made a photocopy of the hardcover, and is selling it for $100. The cover is flimsy paper, scuffs and bends easily; the text on the pages is askew; and the contrast in the charts and shading is awful.