The 14 photographic and text based works in Last Seen consist of two distinct series. The first, created in 1991, titled Last Seen… is a series of photographs and texts created shortly after the 1990 theft during which 13 objects were stolen from the Museum. The second series, titled What Do You See?, includes new work which Calle made in 2012 at the Museum while revisiting the earlier project.
In 1990, during an exhibition of Calle’s work at the Institute of Contemporary Art, Boston, Calle was interviewed for a Parkett magazine article by Sheena Wagstaff. At Calle’s request the interview took place at the Gardner in front of Jan Vermeer’s 1658–60 painting The Concert, one of Calle’s favorite paintings. Later that March, the painting became one of the thirteen works stolen from the Museum. Wagstaff later jokingly hinted that perhaps Calle was responsible for the theft. This suggestion spurred Calle to consider creating a project focused on the Gardner’s stolen works.