“I am invisible, understand, simply because people refuse to see me. Like the bodiless heads you see sometimes in the circus sideshows, it is as though I have been surrounded by mirrors of hard distorting glass. When they approach me they see only my surroundings i.e., themselves or figments of their imagination. Indeed everything and anything except me.” (Ellison, 1952 : 3) Mention some of the common features central to the public perception of ‘disability' all over the world.