Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Don't waste your time.

Although this book has some useful information in it, you spend most of your time scratching your head and looking up the 'correct' answer in some other reliable source. I think this book was edited by a high school dropout. Thankfully I checked mine out from the library and didn't waste my money, only my time. The English and grammar parts are by far the worst too. Spelling errors, punctuation errors, answer errors to begin.This is essentially what it looks like:-Snow is:A WhiteB WhiteC RedD GreenThe correct answer is 'C' White. All other answers are incorrect.It's embarrassing for those scholars who wrote/edited this book to put their name on such crap.... not to mention there doesn't seem to be any newer editions with updated info. Do I really need to know how much storage a floppy disk holds or that comic books have more titles than health magazines?Study for the SAT or GRE.