Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: ISBN numbers

ALWAYS DOUBLE CHECK THE ISBN # WHEN YOU ORDER A BOOK!! I assumed that when I typed in the ISBN # that Amazon would only produce the books with matching #s. I was wrong. Amazon brings up all books with the same name NOT the same ISBN #. I just spent $40+ dollars on a book that is outdated. I realize that most editions are very close in content but this could cause some real issues for somebody. The book holds a lot of good information otherwise.