Dex Torricke-Barton is a former head of executive communications for Facebook, and over the last decade has advised some of Silicon Valley’s most prominent leaders and companies.

After beginning his career as a media consultant for the office of UN Secretary General Ban Ki-Moon from 2008-10, Dex joined Google as the company’s first executive speechwriter, where he supported Executive Chairman Eric Schmidt. From 2012-16, Dex led executive communications at Facebook, serving as a speechwriter for Mark Zuckerberg. Subsequently, he led communications for SpaceX, Elon Musk’s rocket company based in Los Angeles.

Dex is a frequent public speaker on issues around global connectivity and emerging technologies, and a New York Times-bestselling ghostwriter. He currently serves as the Chief of Staff at the Brunswick Group in London.