 A Titulus pictus is a merchant's mark or other commercial inscription.The sense of "title", as in "book title", in modern English derives from this artistic sense, just as the legal sense derives from plainer inscriptions of record.The most famous titulus was "IESVS NAZARENVS REX IVDAEORVM" - Jesus the Nazarene the King of the Judeans - inscribed on the placard hanging above Jesus' head on the Cross.