Simon Sinek, a trained ethnographer and author of Start With Why: How Great Leaders Inspire Everyone to Take Action, works to teach leaders and organizations how to inspire people.

Sinek has discovered some remarkable patterns in how successful leaders think, act and communicate and is best known for his theory of the Golden Circle, a naturally occurring pattern grounded in the biology of human decision making, which explains why we are inspired by some people, leaders, messages and organizations over others.

Sinek’s unconventional and innovative views on business and leadership have attracted international attention and have earned him invitations to meet and speak with leaders and organizations in an array of industries.

He is a regular contributor to The Huffington Post, writes his own blog, simonsinek.com, and makes regular guest appearances on MSNBC’s Your Business. His TED lecture, How Great Leaders Inspire, is one of the most shared TED Talks on TED.com.

Sinek teaches strategic communications at Columbia University and is an adjunct staff member of the RAND Corporation. He is also active in the arts and not-for-profit world, working with the Education for Employment Foundation to help create opportunities for young men and women in the Middle East.

Follow Simon Sinek on Twitter @simonsinek.