Untitled is the third volume of Diane Arbus’s work and the only one devoted exclusively to a single project. The photographs were taken at residences for the mentally retarded between 1969 and 1971, in the last years of Arbus’s life. Although she considered doing a book on the subject, the vast majority of these pictures remained unpublished prior to this volume. These photographs achieve a lyricism, an emotional purity that sets them apart from all her other accomplishments. “Finally what I’ve been searching for,” she wrote at the time. The product of her consistently unflinching regard for reality as she found it, the images in this book have less in common with the documentary than with the mythic. Untitled may well be Arbus’s most transcendent, most romantic vision. It is a celebration of the singularity and connectedness of each and every one of us. For Diane Arbus, this is what making pictures was all about.