The ACM/IEEE Joint Conference on Digital Libraries (JCDL 2013) is a major international forum focusing on digital libraries and associated technical, practical, organizational, and social issues. JCDL encompasses the many meanings of the term digital libraries, including (but not limited to) new forms of information institutions and organizations; operational information systems with all manner of digital content; new means of selecting, collecting, organizing, distributing, and accessing digital content; theoretical models of information media, including document genres and electronic publishing; and theory and practice of use of managed content in science and education.