CoLIS 4 is the fourth in the series of international conferences whose general aim is to provide a forum for critically exploring and analyzing library and information science as a discipline and as a field of research from historical, philosophical, theoretical, and methodological perspectives. Written by leading researchers from around the world, the papers present the latest information on new developments and new approaches to both the conceptual and the practical work in library and information science, including in areas such as information interaction, infometric approaches, and information retrieval.