Instruct: Classify Amazon reviews into positive or negative sentiment
Query: If you buy one review guide this should be it.

Prepared by the organization that writes the ACT. As a teacher who helps prep students for the college admissions tests, I know what most students are willing to do. Hours of study and review over a long period of time may be the ideal, but it is an unrealistic ask of most teenagers. Their most efficient use of time is to take practice tests and then look over the problems missed. This book has real questions direct from the source combined with good explanations of all answers. The overall review sections are short and to the point. Students may take practice tests one section at a time to avoid burnout (but must understand why they missed each question). A few hours spent preparing with this method will raise scores, probability of admission to certain schools and the amount of scholarship money a student is likely to earn.