Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Rip Off Book

I ordered this book to gain more knowledge about internet marketing. After I received it and starting to read the book, I found out that more than half of the book was the authors book on how to start a curb side painting of numbers. I felt that this information was totally irrelevent to what I thought the book was suppose to be. This is a RIP OFF in my opinion. The author, Jason Farber, should be upfront on Amazon's website and let the public aware of what he is selling. I really enjoy ordering from Amazon and will continue to order from them but I won't order anymore books from Jason Farber. Don't buy it consumers!