The ICA has announced to its Member Societies and International Affiliates that the year 2020 will be the International Year of Sound. The letter from ICA President Michael Taroudakis and a document with additional details are reproduced here. IYS 2020 will provide an opportunity to promote to the world the importance of sound in all aspects of our life. Organizations are encouraged to consider outreach activities and to be innovative. A lasting legacy from the International Year of Sound in 2020 will be the development of education programs that highlight the importance of sound and in particular promoote best practices in the utilisation of sound and preservation of hearing health.