Katherine Demetriou Sidelsky is a New York–based artist working primarily in sculpture and installation, incorporating lens-based and imaging processes as part of an expanded material practice. Drawing on her background in architecture, she explores perceptual boundaries of place and displacement, the dynamics of display, and the relationship between surface, structure, and support, articulated through constructed topographies.

Sidelsky received a Master of Fine Arts from the School of the Art Institute of Chicago in 2025. She also holds a Master of Science in Advanced Architectural Design from Columbia University, where she received the William Kinne Fellows Traveling Prize, and a Bachelor of Architecture from the University of Arizona. A project she contributed to was included in MoMA’s Light Construction exhibition and earned her an Honor Award from the California Council of the American Institute of Architects.

Her work has been exhibited internationally, including group shows in New York City, Chicago, Richmond, Northampton (UK), and Barcelona (Spain).