Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Was waste of time and money for me

This book tought me nothing useful whatsoever. Just broad concepts and a lot of words about millions of dollars.To summarize this book so that you don't have to buy it:1. Think big2. Don't be afraid to fail3. Don't reinvent the wheel, learn from succesful people ( that's what i was hoping to learn from this book ).4. And then it pretty much repeats itself over and over again just in different context.