Video professors: Evangelia Kavakli - Aegean University (Mytilene, Lesvos - Greece), George Tsekouras - Aegean University (Mytilene, Lesvos - Greece), Christos Anagnostopoulos - Aegean University (Mytilene, Lesvos - Greece), Damianos Gavalas - Aegean University (Mytilene, Lesvos - Greece)