Marcus is especially interested in primitive and traditional skills of the north, with a strong focus on Finland. He is also interested in practical wilderness skills and knowledge of people living in the Arctic and Subarctic.
Marcus has a a wide range of expertise and has cooperated with several Finnish museums creating exhibits. He has for several years been affiliated with the museums in the municipality of Pargas where he is also currently living. Marcus is part of the Swedish speaking minority in Finland and is therefore working to raise awareness of old traditions, skills and customs of Swedes in Finland.