Simon Sinek is a British-American author and motivational speaker. His TED Talk Start With Why is one of the most-watched talks of all time, with over 65 million views.
His books include Start With Why, Leaders Eat Last, The Infinite Game, and Find Your Why. His central premise: people don't buy what you do, they buy why you do it.
He works with organizations and leaders worldwide on building purpose-driven teams, ethical leadership, and the kind of long-term thinking that survives short-term pressure.