Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Printing Problems

The book I received today has a very poor printing - the blurred pictures just cannot be understood.I'm asking for an exchange, or the money back.Too bad for Amazon and Prentice Hall's reputation. And also for National Instrument's, that also has its name on the front cover top.The main question is: there's already been another review complaining on this printing problem - that I unfortunately hadn't read before. Why Amazon keeps shipping this unacceptable quality?Posted by: l.mendes@pucpr.br