Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

What a pleasure to read such a high-quality book... It introduces each of the islands in a colorful and vivid way. The book includes many pictures, and provides a fine insight into the culture and character of the islands and touches on history, people, travel, activities, sights, nature, and a lot more.However, if you are looking for a book with accurate travel information, e.g. hotels, restaurants, prices/dates, how to get there, etc., this book is on the weaker side. Use it together with the Frommer's Caribbean guide for a combination that is hard to beat. Despite this weakness, it's still a five star on my bookshelf.
Positive

Great American classic that you can get for free on kindle. I was supposed to read this back in high school but wasn't not interested at the time. But now with the benefit of age I can really appreciate it.
Positive

Don't get me wrong, I believe in UFOs and certainly Mothman, since my friend's aunt saw it, but 90% of this "nonfiction" book is nonsense. Keel's semi-acurate listing of the real life mystery of Mothman wins it a single star, but the speculation that he pushes as the gospel truth is laughable, and is mostly based on questionable facts and ideas that are theoretical at best. If you want to know about Mothman read James Cohen's Book of Mysterious Beasts, if you want to waste your time and Amazon's time, buy The Mothman Prophecies.

Negative