Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Try and find the red grain of sand

This book is completely worthless. It teaches a person absolutely nothing of any value and has intuitive truths that are easily seen even by the most ignorant, unfocused people I know. His theories on body language are inaccurate astrologicalesque blatherings. The author has a very powerful belief in his writings which makes it even harder to read knowing that he thinks he is providing people with valuable and useful information. DO NOT BUY THIS BOOK!!!!