A Man With No Appearance.

It crossed my mind this idea: can a man have no appearance?. During my drive from my work to my home I tried to make up different scenarios: 1- He is covering his face with a paper bag that has three holes two for his eyes and one for his nose. 2- He is wearing the magic hat that when he put it on makes him invisible. 3- He is walking around wearing an astronaut suit. 4- People hear his voice and read his writings without seeing him. By the time I had reached my home I run out of ideas. I closed the door of my cave behind me and went right to bed.