Mirna Willer, PhD, is Professor at the University of Zadar, Department of Information Sciences, Croatia. She teaches courses in theory and practice of information organization at the undergraduate, graduate and postgraduate levels. Among other international body memberships, she was a chair of the Advisory Task Group of the Consortium of European Research Libraries (1999 – 2007) responsible for the development of the Heritage of Printed Book Database, a standing member o f the IFLA Permanent UNIMARC Committee from its establishment in 1991 until 2005 (chair of Committee from 1997 to 2005), since then she has been its consultant and honorary member. She was also a member of the IFLA Working Group on FRANAR, the group responsible for the conceptual model FRAD, as well as the ISBD Review Group, and ISBD Future Directions Working Group. She was chair of the ISBD/XML Study Group (2008 – 2011), and continues as a member. Since 2011 she has been chair of the ISBD Review Group. She wrote a book on UNIMARC in Theory and Practice, and co – authored Bibliographic Information Organization in the Semantic Web with Gordon Dunsire.