The 2nd SPARC Japan Seminar 2017 entitled "Preprint and Open Access" will be held on 30 October, hosted by SPARC Japan, in keeping with this year’s Open Access Week theme of “Open in order to…”. We will review the role and management of the preprint servers in these 30 years and discuss how to contribute to the advancement of scientific research and the issues concerning the importance of the commercial publication, sustainable models of the publication and the quality…