International Literacy Day is one of the international days celebrated under the auspices of the United Nations. This day was introduced by UNESCO in 1966 at the International Conference of Ministers of Education on the Elimination of Illiteracy, which was held in 1965 in Tehran. On September 8, the conference was officially opened. The main purpose of this day is to promote literacy in society, which is one of the main tasks of UNESCO. Literacy is a real holiday for humanity, because we are glad that the number of literate people in the world has reached 4 billion. However, literacy has not achieved the expected results among children, youth and adolescents. Despite the progress made in many countries, illiteracy is a tragedy for humanity, given that more than 860 million adults are illiterate and more than 100 million children do not go to school. Special curricula have been developed for girls and boys with limited access to quality education. Every year, Literacy Day is dedicated to a specific theme. These include: "The role of literacy for women", "Literacy expands personal opportunities", "Literacy and health", "Literacy promotes sustainable development" and others.