Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Delmar's Dental Assisting Exam Review

I looked at several review books before I took my exam and found this particular book to be THE BEST!! It covered everything that was on the exam and the information was accurate and helpful. I thought the exam at the end of the book was a good refresher and the end of the chapter review was helpful. I would highly recommend this book to anyone who is about to take the National Board.