Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A huge waste of time and $$$

If it was allowed I would give this book a big fat zero. Alas, one star is as low as it gets. It skims over everything. Nothing practical in here. If you feel compelled to get this book buy a used copy. I am in the process of reading "Start Your Own Business" By Rieva Lesonsky which proves to be a great resource.