International Literacy Day, proclaimed by UNESCO* and celebrated annually on September 8, epitomizes the third purpose of the United Nations: helping nations work together to improve literacy. The foundational reason for having an International Literacy Day is to highlight the importance of literacy to individuals, communities and entire societies. Remaining true to the meaning of the global holiday, during this time, UNESCO reminds the international community of the state of literacy around the world.

Over time, the idea of what literacy is has been expanded to include perceptions of how it relates to family, community and society at large. International Literacy Day highlights "everyday literacy," which encompasses adult basic education, adult secondary education, citizenship, civics education, computer literacy, English as a Second Language (ESL), family literacy, health literacy, learning disabilities program, tutoring, remedial education, learning disorders, reading comprehension, navigating community, gender equality, and world peace.

To raise public awareness of the extraordinary value of the written word and of the necessity to promote a literate society, a group of writers support UNESCO through the Writers for Literacy Initiative. Various themes are celebrated around the world during International Literacy Day. Some of the past themes include literacy paired with health education, epidemics, gender equality and empowerment of women, and peace.