Instruct: Classify Amazon reviews into positive or negative sentiment
Query: bad cover, worse content

I mistakenly bought this book due to the comments and what I had heard about Whitley in an UFO documentary. There may be some kind of extraterrestrial life(a small particle or cell, not Whitley's alien friends) but, what this book tells are nonsense. What kind of sane people may believe all of this rubbish? We almost can't assure the existence of water outside the Earth after many years of investigation and this man tells a story about ET relatives appearing and disappearing almost daily in Earth.Despite its lack of usefulness I have learned something from this book: there is a worrying amount of people who seem to belong to the same group of "blind believers". People who need some evidence in order to believe seem to be a nearly to extinction race.I enjoy with somo UFO documentaries but this book is the worst UFO-related story I have ever seen.