Since the early 1980s, Bjørnar Olsen has worked with northern and Sámi archaeology as well with theoretical issues in archaeology and the humanities. Apart from these fields his current research interests include contemporary archaeology, modern ruins, material memory and thing theory. He has led a number of international research projects, including Ruin Memories (2009-2013) and the current Object Matters project, both focusing on contemporary archaeology, heritage and object-oriented approaches. His forthcoming project, Unruly Heritage: An Archaeology of the Anthropocene was recently allocated funding for five years through the Norwegian Research Council’s Toppforsk program. His latest books are In Defense of Things: Archaeology and the Ontology of Objects (2010); Persistent Memories: Pyramiden – a Soviet Mining Town in the High Arctic (2010, with E. Andreassen and H. Bjerck); Hybrid Spaces: Medieval Finnmark and the Archaeology of Multi-Room Houses (2011, editor with P. Urbanzcyk and C. Amundsen), Archaeology: The Discipline of Things (2012, with M. Shanks, T. Webmoor and C. Witmore), Hunters in Transition: An Outline of Early Sámi History (2014, with L.I. Hansen) and Ruin Memories: Materialities, Aesthetics and the Archaeology of the Recent Past (2014, editor with Þ. Pétursdóttir).