Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Ghastly Piece of Garbage

This is a book that was written to counter the book written by Mankiew (by the way Mankiew is also an example of a bad textbook). Mr. De Long does not have a clue how to write a good introductory textbook. He is a below average writer with no style or flair. He needs to take some classes in english 101 writing in order to relieve us from pain of reading his books. Now, with this book published, Brad De Long can inflict misery on poor Berkeley students by making them buy his textbook for introductory macro classes. When is the next edition coming Brad? Eventhough De Long will not make a lot of money but he is still part of the self centered academia that writes books to publish new editions.Please try to keep name dropping to a minimum. You were a low level treasury official not the secretary of treasury. In addition, you are not a man of letters.