The Open Science Conference 2017 is dedicated to the Open Science movement and provides a unique forum where researchers, librarians, practitioners, politicians, and other important stakeholders can discuss and exchange their ideas and experiences. The conference addresses the scientific, practical and political dimensions of the European Open Science Cloud. The scientific and library community will present concrete Open Science practices and applications, strategies, and policy recommendations for the implementation of the European Open Science Cloud. A pre-conference Barcamp will be held on 20 March 2017. The call for project presentations on “open educational resources” ends September 30th, 2016.