Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good for more than one thing

Even if you are not planning on writing science fiction or fantasy today, this book is worth your time if you are 1) interested in Orson Scott Card and how he gets and develops his ideas, and what he likes to read, or 2) you are interested in writing of any kind, even non-fiction. If you have even a fleeting interest in any of these subjects, Card will tell you more in a little book than almost anyone else in a very big book.