Leadership video description from TED: Simon Sinek has a simple but powerful model for inspirational leadership all starting with a golden circle and the question “Why?” His examples include Apple, Martin Luther King, and the Wright brothers … (Filmed at TEDxPugetSound.)

In 2009, Simon Sinek released the book “Start With Why” — a synopsis of the theory he has begun using to teach others how to become effective leaders and inspire change.