Instruct: Classify the given review into positive or negative sentiment.
Query: This book is a joke!

I won't usually even review "books" of this genre, but this one is so sparse, and bloated with poor content, it has to be a joke, right? I can't wait to get the CD! I have reviewed far better books on the subject for magazines and trade pubs. This one isn't really even a book! It's more like [$] sales tract... which according to some of the reviews I read here, are still born every day.