Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Great!

Even though textbooks have answer in the back, it means nothing if you don't know how they arrived at the answer. Thankfully, this solutions manual was cheap and affordable. It helped immensely. My issue is that it didn't have all the ODD problems worked out for you. The authors probably assumed that we would be able to answer questions with just one example answer. That's not always the case..other than that, this solutions manual was my best friend in calculus :D