Instruct: Classify Amazon reviews into positive or negative sentiment
Query: An important book to have out for the children.

This is a classic science book. Don't be intimidated by the author, this is a well written book for the rest of us. I was surprised of the humor Mr. Hawking uses. One day, one of your children may pick it up. It has a great detailed, but brief history of astronomy. I suggest the illustrated version of the book. It is much easier to follow with visual reference. We already lost Carl Sagan, one day we will lose this great scientist, Stephen Hawking. It is a book that is easy to read (for adults), and will be a good challenge for offspring. I highly recommend this book as a staple publication in your home.