Airing in the United States two years after its original U.K. release, Portrait of a Marriage was based on the 1973 book of the same name about Harold Nicolson and Vita Sackville-West. It included two autobiographical chapters by Sackville-West describing her tempestuous affair with fellow writer Violet Trefusis. The poster emphasizes the emotional distance between the married couple; the tiled interior of their estate, Sissinghurst Castle in Kent, fades into its famous garden, one of the few passions they shared. Represented by Push Pin in the 1970s, Schongut would go on to have a versatile career as a commercial illustrator, working on numerous book jackets, advertising campaigns, and editorial content.