Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't buy

Change the Oil is not going to win any book awards. It was disappointing. Very poorly organized with random points made through out and other points repeated multiple times. The information could have been conveyed in about 10 well written pages. It could have used a proof reader. There were many misspellings, missing words, etc. Photos were of a very poor quality. I really don't know whether I should trust the information. I recommend you find another source for the information