I love this. I also got into stairs via Escher and the tribute to him at the end of Labyrinth. I also liked learning about l’esprit d’escalier from an issue of The Sandman. These days, my favorite personal associations with stairs have to do with the cover of Bauhaus’s Swing the Heartache and Ann Lauterbach’s On a Stair and the photographs she took for the cover of Or to Begin Again.
More stairs here.