These works are based on an image from a shoemaker's sign from Aroch's memory, an image of a boot, which Aroch recalled from his childhood. Aroch created variations of this image, arriving in the end at a sort of abstract form placed within an oval frame. In a later interview, Aroch explained the development of this image as the basis for “concrete abstraction”: “The image that developed from the boot looked like a concrete image (as opposed to an abstract one), whose right of existence is the right of existence I wanted to embody in an abstract object, in an object that corresponded to a definition I had created previously.”[8]