Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Raw and to the point.

One of my mentors Frank Kern recommended this author. So I went ahead and bout this book. It's a quick read and the man definitely brings you into his world. His writing style is honest and raw. Have you ever been in a cab that had the typical taxi cab smell with the guy smoking a cig ? And he's telling you a story while taking you to your stop and you are looking at the fair meter ? Well that was Bukowski writing Post Office.