Simon Sinek
Simon Sinek is a global leadership guru and the third-largest TED speaker in history. He is the bestselling author of Start with Why and Leaders Eat Last, which have helped organisations around the world inspire their people to reach new heights. He has presented his ideas to Fortune 100 companies and small startups; to non-profit organizations and members of Congress; to foreign ambassadors and the highest levels of the US military, among many others. His TED Talk based on Start with Why is the third most popular video of all time on TED.com, with more than 27.9m views.