Instruct: Classify the given review as either positive or negative.
Query: The worst book I've ever read.

This is the worst book I have ever read. Apart from being badly written, it is obvious that the author has never met JK Rowling and all the information is pieced together from interviews she has given to various newspapers and magazines. There is no substance to this book at all, just many repetitions and inconsistencies. It is obvious that both the author and the publisher are trying to cash in on JK Rowling's success, because they figure that people will buy the book because they like the `Harry Potter' books and want to know more about JK Rowling. This is the mistake I made. Do yourself the favour and save both time and money and just read a few newspaper interviews with JK Rowling - they will be far more enlightening and informative than this book. If there was an option to give this book a zero star rating I would.