Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nice, but seems to focus on those who can write or give talks/seminars.

This might be the right book for many, but as I am not a writer or public speaker, it did not provide the information I'd hoped. I do like the idea of multiple sources of income, though. The way corporate america behaves, I wonder if they are really human beings. Thus, the idea of not putting all one's eggs in one basket seems wise.