Tassos Sintelis was born in Athens. He studied painting by paintew Panos Sarafianos and is a graduate of Athens School of Fine Arts with expertise in Engraving, Painting and Mosaics.

He has a PhD from Belford University USA and international recognition. From 1970 to 2000 he has benn living and working at the USA. Since 1974 he teaches painting and engraving at USA Universities.

He has exhibited his art in many  solo and team exhibitions in Greece and abroad. His artworks are exhibited in private exhibitions and museums in Greece and abroad.