Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The worst book written to date

This book is horrible. Has errors (such as stating there are FIVE Stages of Endo, when there are only FOUR), is nothing but a "look at me, look at me, aren't I wonderful," type of book. Some of the information is suspiciously familiar from other works, but without the credit being given, such as what happened on her website not terribly long ago.My advice? Get a book that is well known for TRUE INFORMATION about Endometriosis, and not a book that only wants to depict the author and "how wonderful I am." Glenda Motta has a terrific book. The Endometriosis Sourcebook, while a bit outdated, still has excellent information contained within it.