Robert Indiana prepared an unusual sort of ten-year retrospective [Robert Indiana: New Paintings and Sculpture, Galerie Denise René, New York] composed not of works from the past decade but of paintings specially prepared from the occasion. Each picture employs the same basic format, a dynamic structure that superimposes a one, a zero, and a star in intersecting levels, but changes colors and text from one work to the next. The autobiographical element lies partly in the dates and words that refer to events and places in his life and partly in the highly refined signpainter style and motifs that he contributed to the history of Pop Art.
—William Dyckes
"Gallery Reviews: Robert Indiana," Arts Magazine 47 (February 1973), p. 76