Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Better be a Mathematician!

As an undergraduate economics major, I found this book to be written in a manner that presupposed that the reader was a mathematician. While I admit that my undergraduate focus was much more theory based versus quanititative, this book made my life in econometrics virtually unbearable. I sought out other books that were more helpful such as Calculus for Business and Economics by Robert Childress (old but still good!). Mathematical Methods may be a good source for those with great strength in calculus, but it is not for the mathematical novice.