Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very helpful!

I read previous reviews about this study book and have to agree that it is an excellent resource for preparing to take the NBCOT exam. The questions asked resemble those on the exam, but I actually found this book most helpful in that it gave me insight into what I DIDN'T know and thus needed to study. I started my study process by taking Exam 1, studied the subject areas where I scored the weakest, then took Exam 2, etc.....Used in conjunction with the online tests NBCOT offers and my own study notes I felt very well prepared to take the exam and earned a passing score. Good luck and happy studying!