Robert Indiana was born Robert Clark in New Castle, Indiana on September 13, 1928.   Adopted as an infant, he spent his childhood moving frequently throughout his namesake state. His artistic talent was evident at an early age, and its recognition by a first grade teacher encouraged his decision to become an artist. In 1942, Indiana moved to Indianapolis in order to attend Arsenal Technical High School, known for its strong arts curriculum. After graduating he spent three years in the U.S. Air Force and then studied at the Art Institute of Chicago, the Skowhegan School of Sculpture and Painting in Maine, and the Edinburgh College of Art in Scotland.

In 1956, two years after moving to New York, Indiana met Ellsworth Kelly, and upon his recommendation took up residence in Coenties Slip, once a major port on the southeast tip of Manhattan. There he joined a community of artists that would come to include Kelly, Agnes Martin, James Rosenquist, and Jack Youngerman. The environment of the Slip had a profound impact on Indiana’s work, and his early paintings include a series of hard-edge double ginkgo leaves inspired by the trees which grew in nearby Jeannette Park. He also incorporated the ginkgo form into his nineteen-foot mural Stavrosis (1958), a crucifixion pieced together from forty-four sheets of paper that he found in his loft. It was upon completion of this work that Indiana adopted the name of his native state as his own.

Indiana, like some of his fellow artists, scavenged the area’s abandoned warehouses for materials, creating sculptural assemblages from old wooden beams, rusted metal wheels, and other remnants of the shipping trade that had thrived in Coenties Slip. While he created hanging works such as Jeanne d’Arc (1960–62) and Wall of China (1960–61), the majority were freestanding constructions which Indiana called “herms” after the sculptures that served as boundary markers at crossroads in ancient Greece and Rome. The discovery of nineteenth-century brass stencils led to the incorporation of brightly colored numbers and short emotionally charged words into these sculptures as well as canvases, and became the basis of his new painterly vocabulary.

Indiana quickly gained repute as one of the most creative artists of his generation, and was featured in influential New York shows such as New Media—New Forms at the Martha Jackson Gallery (1960), Art of Assemblage at the Museum of Modern Art (1961), and the International Exhibition of the New Realists at the Sidney Janis Gallery (1962). In 1961, the Museum of Modern Art acquired The American Dream, I (1960–61), the first in a series of paintings exploring the illusory American Dream, establishing Indiana as one of the most significant members of the new generation of Pop artists who were eclipsing the prominent painters of the New York School.

Although acknowledged as a leader of Pop, Indiana distinguished himself from his Pop peers by addressing important social and political issues and incorporating profound historical and literary references into his works. American literary references appear in paintings such as The Calumet (1961) and Melville (1961), exhibited in 1962 in Indiana’s first New York solo exhibition, held at Eleanor Ward’s Stable Gallery. In 1964 Indiana accepted Philip Johnson’s invitation to design a new work for the New York State Pavilion at the New York World’s Fair, creating a twenty–foot EAT sign composed of flashing lights, and collaborated with Andy Warhol on the film Eat, a silent portrait of Indiana eating a mushroom in his Coenties Slip studio. His first European solo exhibition took place in 1966 at Galerie Schmela in Düsseldorf, Germany, and featured his Number paintings (1964–65), a series of works on a theme that he has explored in various formats throughout his career.

In addition to being a painter and sculptor, Indiana has created a significant number of prints, among them the Numbers Portfolio (1968), a collaboration with the poet Robert Creeley, as well as many other works of graphic art, including the poster for the opening of the New York State Theater, Lincoln Center (1964), and the poster for the opening exhibition of the Hirshhorn Museum of Art (1974). He designed the stage sets and costumes for the Virgil Thompson and Gertrude Stein opera The Mother of Us All, which was presented in 1967 at the Walker Art Center in Minneapolis and expanded in 1976 for the Santa Fe Opera in honor of the Bicentennial. Indiana has also created other unique projects, such as the design for a basketball court at the Milwaukee Exposition Convention Center Arena in 1977.

Indiana’s artwork has been featured in numerous solo and group exhibitions around the world, and his works are in the permanent collections of important museums such as the Museum of Modern Art and the Whitney Museum of American Art in New York; the National Gallery of Art, the Hirshhorn Museum and Sculpture Garden, and the Smithsonian Museum of American Art in Washington, D.C.; the Albright-Knox Art Gallery in Buffalo, New York; the San Francisco Museum of Modern Art; the Menil Collection in Houston; the Currier Museum of Art, Manchester, New Hampshire; the Museum Ludwig in Cologne, Germany; the Van Abbemuseum in Eindhoven, the Netherlands; MUMOK (Museum Moderner Kunst Stiftung Ludwig Wien) in Vienna, Austria; the Art Museum of Ontario in Toronto; and the Israel Museum in Jerusalem. He has also been included in numerous international publications, and is the subject of a number of monographs.

In 2013 the Whitney Museum of American Art hosted the artist’s first New York retrospective, Robert Indiana: Beyond LOVE, curated by Barbara Haskell. Indiana passed away in his home on May 19, 2018, just a few weeks before the opening of his sculpture retrospective at the Albright-Knox Art Gallery curated by Joe Lin-Hill. Since his passing, exhibitions of his work have been mounted at the Contemporary Art Foundation, Tokyo; Yorkshire Sculpture Park, United Kingdom (curated by Clare Lilley); and other international art spaces.