Instruct: Classify a given review into positive or negative sentiment.
Query: Great Read from Amazon

I found this book to be a great psychological thriller. It kept me reading and was gripping.However, I did find in parts that it did go on rather about unimportant details, such as the background of certain characters, so much so that I got bored and just wanted to get on with the story. Authors should remember that many readers don't like too much information about mundane details or something that is not central to the story line. It is rather distracting.