Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is not based on any sort of true information

My experience with this book is that it is not based on any sort of factual information regarding L. Ron Hubbard or Dianetics or any other subjects that he has been involved with. It is purely someone's opinion and should only be taken with a grain of salt. If you want to know the true information, read "What is Scientology?"