The Cultural-Artistic Festival of Farsi Speaking People. This is the theme for the event being held at Tehran's Cultural Institute of Economic Cooperation Organization (ECO) Cultural Institute. It's a ceremony unveiling key elements of the Persian culture. The gallery is showcasing 50 art pieces of modern Persian canvas paintings and Persian calligraphy to show regional countries and the whole world the deep rich Persian heritage. \n\nECO is an intergovernmental regional organization established in 1985 for the purpose of promoting economic