Marek Krajewski - sociologist, full professor, employed at the Department of Sociology, Adam Mickiewicz University, Poznan. He specializes in the sociology of culture and relational analyses of social life, materiality and the city. Author of numerous articles on contemporary culture, art and cultural education, and books: Kultury kultury popularnej (2003), POPamiętane (2006), Za fotografię! (2010, with R. Drozdowskim), Są w życiu rzeczy… (2013), Incydentologia (2017), (Nie)nawidzenia. Świat przez nienawiść (2020); Spis natur. O mieście, sztuce, technologii i współczesnych obyczajach (2025), Curator of the AMS Outdoor Gallery (1998-2004) and originator of the “Invisible City” project (www.niewdzialnemiasto.pl). Co-founder of the program promoting cultural education Very Young Culture and the Everyday Life Research Archive project (www.archiwum.edu.pl).