Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A must-read

This book was so engrossing, I finished it in three days. I rarely come across a book where I get so attached to a character and absolutely, positively must find out what happens to him/her. The Book Thief is such a book. It gives gripping insight into what it must have been like to live in Germany under Hitler's rule, and the risks people took to protect the innocent Jews from his madness. I give it five stars.