Explain why space is such an important concept of art? how did art change following the invention of linear perspective?

Space gives the viewer a reference for interpreting an artwork. For instance, you may draw one object larger than another to imply that it is closer to the viewer. Likewise, a piece of environmental art may be installed in a way that leads the viewer through space.

changeable lenses of different focal lengths allows light to enter the camera,which then forms the image on light-sensitive film;