Every sale you make is a negotiation. If you're not negotiating price, you're negotiating with the customer on if they will ... or will not ... buy from you.
This book is not about theory.
These techniques have generated billions of dollars in sales.
This book is also not about how to manipulate people into doing something they don't want to do. It is not hardcore. It is a professional soft-sell, using human nature, psychology, and the power of the right words to move people where you want them to go.