David is the author of the best-selling book Do You Talk Funny? and the Founder of FunnyBizz Conference. “One of the best speaking coaches out there” according to Forbes, his program has been featured by Prezi as one of the best training courses for presenters. His book remains one of the highest rated in the world on the (usually not so wildly exciting) topic of public speaking and was listed by Book Authority as "the best public speaking and storytelling book of all time".
David was named one of world's top 30 communications professionals by Global Guru for 2021, and was also named on the Irish America 100 List, which recognises the accomplishments of the best and the brightest Irish-born leaders.
His work has been featured in Inc., Lifehacker, The Huffington Post, Fast Company, Entrepreneur, Forbes, NPR, The Wall Street Journal, The Irish Independent, TV3, Newstalk, TED and The Irish Times. His content has been read by over one million people and his videos have over 50 million views.
A sought after international business speaker, David also performs standup comedy and was the winner of the prestigious 43rd annual San Francisco International Comedy Competition (previous finalists include Robin Williams, Dana Carvey and Ellen DeGeneres). As a storyteller he finished runner up in NPR’s the Moth’s largest US story telling competition. As a lecturer he has taught at Stanford Graduate Business School, UC Berkeley, University of Oxford and University College Dublin.
A graduate of the UCD Michael Smurfit Graduate Business School he calls San Francisco home when immigration officials permit.