World Hearing Day is held on March 3 each year to raise awareness on how to prevent deafness and hearing loss and promote ear and hearing care across the world. Each year, the World Health Organization (WHO) decides the theme and develops a brochure on the topic based on the best available evidence as well as advocacy materials such as posters, banners, infographics and presentations, among others. These materials are shared with partners in government and civil society around the world as well as WHO colleagues across the Organization.