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

El primer libro del Dr. Weiss sigue siendo un gran libro para todos aquellos a quienes les inquieta el tema de la reencarnación, así no crean en ella.
Positive

Who would buy it not knowing what is on it, is there any new material, is there a better version of music than previously released, how many, etc., etc. You've got to tell us something - give us a reason to buy it - give us a few short pieces to listen too! King indeed; he's pretty good but the King has been dead awhile (notwithstanding the occasional phantom sighting) and the remaining living creators of original rock and roll - Jerry Lee Lewis and Chuck Berry are very much alive and touring and in Jerry Lee's case still recording great music.I'll take a look at buying this if I can see and hear what it is!Jimp.s. sorry for the 1 star but ...
Negative

I agree with the reviewer who is not the author. This is really a bad book. Totally not believable with no depth to the characters. I find it hard to believe this book is so popular overseas. I should consider writing for a living. I think the author is a little touchy, too. I guess it was too much for her that someone didn't like her boring book.

Negative