The Friendly Ghost of MoMA's Lobby

"Not a lot of people know who she is. She's like our little, friendly ghost." Alaina Boukedes, a guest specialist in MoMA's Department of Visitor Engagement, talks about the “unpredictability” of her favorite piece in the Museum, Philippe Parreno’s installation Echo: “She’s always talking, she’s always interacting...she’s never the same.”