Praxis means action. Accordingly, project area A "Practices" comprises projects whose objects of investigation are deeply entrenched in specific historical everyday worlds and more general socio-cultural contexts and activities. In those practices, we seldom meet explicit reflections on their premises and conditions. This is why in this project area the heterological dimension of our praxeological model is more clearly marked than the autological one. Social function and aesthetic performance are frequently interwoven in unexpected locations of socio-cultural materialisations. The projects in this area aim at illuminating those aesthetic inscriptions into everyday practices which have been neglected both by aesthetic theory and by reasearch on the "material turn" that has frequently focused on sub-aesthetic phenomena.