This story is phenomenal. Some changes were made to Jack Gruner's story to be a better representation of the holocaust as a whole, but this story in its essence is true. This story is of course sad, horrific, gut-wrenching, and at times unbearable. But that is what makes this a must-read books for all young adults (or even adults). Gratz's writing brings the story to life despite all the death around the main character. This story and Jack's memories are a gift. We must never forget.