Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Less then adequate

I have used this book for the last 2 semesters, and I have to say, this is one of the worst books for explaining the topics. DeCarlo himself, whom I have for a professor, doesn't even use half of the problems in the book, and the only reason I know anything is from the class, I would recommend not buying this to learn circuts on your own since it does not do that.