Giannis Efthimiou was born in Korinthos, Greece, in 1990. He studied for three years at the School of Marble Sculpture in Tinos island (PESKPT), where he came in contact with sculpture and painting. This primary study played a decisive role in his artistic development. During his studies at PESKPT, he received an honorary distinction in sculpture and painting. In 2011 he entered the School of Fine Arts at the First Painting Laboratory, where he excelled, and graduated in 2017.
In 2016 he won the “Spyropoulos Award”, while in 2017 he was awarded the second prize for young artists by the Hellenic General Insurance Company.