Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent, Excellent, Excellent!!!

My son (who is 13) has a hard time reading a complete book, due to his short attention span. A friend suggested this series of books to us. I couldn't be happier. This series is so interesting that he read all of the books within two weeks!!!! As a parent, I enjoyed them also! This is the best deal on the web for this set.