Instruct: Classify Amazon reviews into positive or negative sentiment
Query: hard to understand

had been looking for this book for awhile. when recieved and read was highly disappointed. book was really hard to keep up with and understand the dialogue or to keep up with. to read this book you have to be really bored or nothing else in the house to read. i will continue to search the one written by patrick henden. sorry to say this version was really bad and i was disappointed.