In her correspondence with novelist and New Yorker fiction editor William Maxwell, she wrote:
“I used to use ordinary paste and put the story together in one long strip, that could be seen as a whole and at a glance — helpful and realistic. When the stories got too long for the room I took them up on the bed or table & pinned and that’s when my worst stories were like patchwork quilts, you could almost read them in any direction . . . I like pins."Note Ms. Welty's visual cues for what her worst stories looked like when pinned into a "patchwork quilt".
~Eudora Welty (What There Is to Say We Have Said: The Correspondence of Eudora Welty and William Maxwell)
Visit Jeff Patton's slide deck Building Better Products Using User Story Mapping from Agile India 2010.