Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the Worst Books

I needed this book for a class. It was one of the worst books I have read. The first big problem is that every example is about fireworks. I found myself often struggling with firework concepts to understand the book. The second problem is that the book continually has questions/problems with the answer in the book. Before the concept seems to be fully explained, it is asking you to complete a diagram. I want the book to show me example, explain it and then test me, not test me beforehand.