Robert Indiana counts as one of the main protagonists of the Pop Art movement. His art is described as 'Signal Art', since his eye-catching sign pictures incorporate numbers and words drawn from the aesthetics of advertising. Despite their reduction, his works possess a poetic component. Indiana created his famous series of 'LOVE' sculptures in 1966 so as to remind people in the turbulent 1960s that they should love each other. To 'LOVE', he later added 'HOPE', and 'PEACE'.
Eleanor Ward's Stable Gallery presented Indiana’s first one-man show in 1962. Since then his works have been shown all over the world in more than 30 one-man exhibitions in museums and galleries. No later than his participation in documenta 4 in Kassel in 1968, he also became known to a wide public in Europe. Indiana’s works are included in the permanent collections of, for example, the Museum of Modern Art in New York, the Stedelijk Museum in Amsterdam and the Hirshhorn Museum in Washington D.C.