Yiannis was born in Athens, Greece. He graduated from the Hellenic Navy Academy as an Ensign and thereafter served in various warships, having flown 2.000 flying hours as a pilot, instructor and test-pilot with AB-212 navy helicopters. He retired as a Commander in 2011 to pursue his passion for wine.
He is now a promoter of Greek wines, wine consultant, educator, and co-founder with Gregory Michailos of the www.winecommanders.com blog. He also contributes for international magazines and websites. His greatest wine passions are pre-phylloxera wines, Pinot Noir in general, Barolo mature Santorini and Naoussa and Tokaji.