Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Your better off skipping this one!!

The information provided inside this reference book is ok; however many of the phone numbers and web site links are outdated. I noticed some info was provided with a notation at the bottom that "As of such and such date, this is no longer available" Why even print that info in the first place, if not to just fill in useless space. As a PI, your better off getting usufull info on a PI site. Just my $.02 worth.