Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Not an exciting book to read.

The book seems to be written more in the style of a collegethesis than a book for entertainment. It gets a littletedious and boring at times. It has a lot of facts, but thewriting style causes it to be difficult to stay interestedin, causing one to lay it down and go onto something else,instead of wanting to stay with it until finished.