Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lots of information

I had been looking for a book like this one for a long time and this one fills the bill. However, you're going to need a magnifying glass to read it- the print is REALLY small. I guess they had to use a small font to keep the book a reasonable size, but it induces more than a little eyestrain if you read it for more than a few minutes at a time.