Instruct: Classify a review into positive or negative sentiment.
Query: Excellent Book

This book really explains in detail what exactly is going on in the mind of someone who is a pathological liar. I've always thought that this "condition" wasn't true. I've been skeptic into believing that someone who constantly lies may have a mental problem. This book really opened my eyes. The book is small, but the book is definately worth the read. The author writes as if he's speaking directly to you.