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.

Beginning as a student in anthropology, Simon Sinek turned his fascination with people into a career of convincing people to do what inspires them. His earliest work was in advertising, moving on to start Sinek Partners in 2002, but he suddenly lost his passion despite earning solid income. Through his struggle to rediscover his excitement about life and work, he made some profound realizations and began helping his friends and their friends to find their “why” — at first charging just $100, person by person. Never planning to write a book, he penned Start With Why simply as a way to distribute his message.

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.)

Video Source: http://www.ted.com/talks/simon_sinek_how_great_leaders_inspire_action.html