Instruct: Classify Amazon reviews into positive or negative sentiment
Query: OLDIE BUT GOODIE

When reading this book you cannot think how old the book is. This book is great for understanding basic structure of economic systems. The book should be used to look at the methodology of thought processes which were used to come up with the theory, not the theory itself!Very good book, and very good to expand your thought process.Of course it is no life changing book so if you're looking for that you won't get it here.