Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Couldn't have been better!

This book by Master Hei Long was very informative. It is easy to understand and follow (most of the time) and has many many pictures and writing guiding you through each step. I am 13 years of age and gained a lot of knowledge from this book. I encourage you to not only read this book but study it for best resutls. i recomend this book to people of all ages.