Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The best of the best of the best...

I've read every last one of Carl Sagan's books. I was saddened beyond belief that morning when my alarm clock woke me up to the sound "In other news, astronomer Carl Sagan has died." I never expected to read anything more from him... then, a year and a half later, I found this book sitting in my bookstore. I picked it up, and was up until 3AM finishing it up. Carl Sagan makes you think, feel, and wonder. All I can say is, READ THIS BOOK!!!