Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Awful, just awful

I was given this book by a friend last week, and I read it (or tried to read it) over the weekend. What an intellectual mess. The information is poorly presented, it is confusing, and almost seems to be written by someone with ADHD. Spare me, please. There are far better books out there, as noted by many other reviewers.After reading the book, the friend that gave it to me then let me in on a little secret which some astute reviewers have already wisely surmised. He told me that Mr. Gertler convinced friends (including my friend) to shill his book to distort the Amazon rankings. Now I cannot be sure this is true, but given that so many ratings are 1 star and so many are 5 star with nothing in between, it makes sense.Mr. Gertler should keep his day job, whatever it is. As for the book, its pages are lining my bird's cage as I type this.