Simon Sinek's "Start With Why" introduces The Golden Circle—Why, How, and What. The book posits that great leaders and organizations inspire action by communicating from the inside out, starting with their purpose, cause, or belief (Why). This approach resonates deeply, fostering trust and loyalty, unlike short-term manipulations (e.g., price drops, promotions). It highlights that people don't buy WHAT you do; they buy WHY you do it, connecting with the limbic brain responsible for feelings and decision-making. Sustained success requires clarity of Why, discipline of How, and consistency of What.