Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of time

I can't put it in words how disappointed I am with this book; it's a complete waste of time. I've heard the rumors about M. Chands author capabilities, but now I know for sure: he can't write nor does he know anything about the subject he's writing about. I have bought plenty of Apress books in the past and I am more than satisfied with most of them, but this one goes straight in the bin where it belongs.