Instruct: Classify an Amazon review as either positive or negative.
Query: The best book I have ever read

I think this is an absolutsly fabulous way to be introduced to the heavy subject of historical philosophy in a light and though-provoking manner. It's a mystery, a history, and a child like adventure all at the same time. A history lesson in thought and a page-turner at the same time! Gaarder makes the impossibe possible!