Co LIS 5 was the ?fth in the series of international conferences whose general aim is to provide a broad forum for critically exploring and analyzing research inareassuchascomputerscience, informationscienceandlibraryscience.Co LIS examinesthehistorical, theoretical, empiricalandtechnicalissuesrelatingtoour understanding and use of information, promoting an interdisciplinary approach to research. Co LIS seeks to provide a broad platform for the examination of context as it relates to our theoretical, empirical and technical development of information-centered disciplines. The theme for Co LIS 5 was the nature, impact and role of context within information-centered research. Context is a complex, dynamic and multi- – mensional concept that in?uences both humans and machines: how they behave individually and how they interact with each other. In Co LIS 5 we took an interdisciplinary approach to the issue of context to help us understand and the theoretical approaches to modelling and understanding context, incorporate contextual reasoning within technology, and develop a shared framework for promoting the exploration of context.