Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This not for beginners

This book was confusing from the beginning. In the beginning of the book, the author starts to explain variable's. He does this awfully. i know what variable's since reading other books. There were many other things that were confusing that i rather not mention. That led me to the conclusion that this book is not for beginners. Shame on you dummies for allowing such a blunder of a book be in the series.