Lisa Oppenheim at MUDAM Luxembourg

Installation view, “Lisa Oppenheim: Monseiur Steichen,” MUDAM Luxembourg. Photo: Mareike Tocha Because I only browse Instagram every few months, I’m late to discover that my old pal Lisa Oppenheim, an artist whom I’ve written about and whose work I acquired for my onetime employer , has an exhibition on view now at MUDAM Luxembourg . The curators of the show, Christophe Gallois and and Nathalie…