Robert Indiana is an American artist associated with the Pop Art movement. He was born Robert Clark in New Castle, Indiana. His family relocated to Indianapolis, where he graduated from Arsenal Technical High School. He studied at the Art Institute of Chicago (1949–53), the Skowhegan School of Painting and Sculpture in Maine (summer 1953) and Edinburgh University and Edinburgh College of Art (1953–4), before settling in New York in 1954. There he began making art with distinctive imagery drawing on commercial art approaches blended with existentialism, that gradually moved toward what Indiana calls "sculptural poems".

Indiana's work often consists of bold, simple, iconic images, especially numbers and short words like EAT, HUG, and, his best known example, LOVE. Other well-known works by Indiana include: his painting the unique basketball court formerly used by the Milwaukee Bucks in that city's U.S. Cellular Arena, with a large M shape taking up each half of the court; his sculpture in the lobby of Taipei 101, called 1-0 (2002, aluminum), using multicoloured numbers to suggest the conduct of world trade and the patterns of human life; and the works he created in the aftermath of the September 11, 2001 attacks and exhibited in New York in 2004 called the Peace Paintings.