The cover photograph for Horses was taken by Robert Mapplethorpe at the Greenwich Village penthouse apartment of his partner Sam Wagstaff. Smith, shrouded in natural light, is seen wearing a plain white shirt, which she had purchased at a Salvation Army shop on the Bowery, and slinging a black jacket over her shoulder and her favorite black ribbon around her collar. Embedded on the jacket is a horse pin that Allen Lanier had given her. Smith described her appearance as recalling those of French poet Charles Baudelaire and, in the slinging of the jacket, American singer and actor Frank Sinatra. She recalled that Mapplethorpe "took, like, twelve pictures, and at about the eighth one, he said, 'I have it.' I said, 'How do you know?' and he said, 'I just know,' and I said, 'Okay.' And that was it."
