Kollias Dimitris

Kollias Dimitris is a sound and communication expert. His vision is for a world that listens consciously and speaks powerfully.

Dimitris is author of the books How to be Heard: Secrets for Powerful Speaking and Listening and Sound Business.


Dimitris is a media commentator on speaking and listening skills, and has been featured by the likes of TIME Magazine, The Economist, The BBC, and The Times.

Dimitri's company, The Sound Agency, works with major brands worldwide to improve the way they sound. Their pioneering methods have improved customer happiness, raised sales, and even lowered crime rates, and their work has made headlines internationally.