Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Now I'm learning a hundred new definitions

I recommend this book. Even if you feel that you're ready for the test, this book will have you doing much more research and backtracking. The questions are very detailed and a little tricky so it enables you to get a better understanding of the subject. I haven't taken the test yet. When I took the practice tests in this book I rescheduled it for a later date. I want a few more weeks to study.