Mario Kiesenhofer uses photography, video and installation to reflect on notions of queer sexuality as represented in urban environments, virtual platforms, private or public spaces and gay clubs and bathhouses around the world. Kiesenhofer explores how queer sexuality is made visible by both presenting moments of sexuality and hiding them simultaneously. He works with photographic display materials, like smoked or acid etched glass, to express conditions, such as intimacy or privacy.

Mario Kiesenhofer has exhibited work at the Vienna Museum, Austria; BWA Tarnów, Poland; and A-Gallery, Tokyo, among others. He is the co-founder and art director of Streulicht, a publication series on photography and related arts.