In his illuminating article, Christophersen rethinks concepts in and approaches to the archaeological study of urban living, focusing especially on medieval urban towns in Scandinavia. He recruits various concepts – interaction, event, leakage and creativity – from a materially imbued social-practice theory to explore the urban landscapes as a complex of dynamic social spaces. Christophersen draws from scholars (Hodder 2012; Reckwitz 2002; Schatzki 1996; Shove, Pantzar and Watson 2012) who emphasize that practice is routinized behaviour through which actions and events are performed, that practices are tied to a place and timescape, that social actors live with and interact with materials, and that materials may be the media of interaction with others. Following Hodder (2012), he emphasizes that the nature and quality of social and material relationships lead to the formation and stabilization of practices. In turn, this practice constitutes the town or city.