Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Good stuff

I have all his DVD's. The lessons are great. They cover the basics that are important in the class. Of course not all information is covered in the DVD's. Think of it as an overview of hot topics. I have used these DVD's before I took a class and them reviewed them along the way. I also have purchased some of the idoit and dummy guides as a type of work book. They all together give you a different way to look at the math martial. Because as you know, most math books are written by brainy math folks, and they are not the easiest to follow.