David Nihill is an Irish best-selling author whose book "Do You Talk Funny?" has been listed as the #1 in the world on public speaking and storytelling by Book Authority.

He's taught at Oxford and Stanford University, and been featured by TED.com and Lifehacker. His videos have been viewed over 50 million times, and Forbes.com has called him one of the best speaking coaches out there which is ironic, since he's always been afraid of public speaking.