Another self portrait, drawn when he was 90 or 91. Probably my favorite of his self portraits. Titled "The Young Painter":

It was incredible to see it live unprepared. When you look chronologically through his paintings, you see basically every modern style there is - the guy participated in a lot of art movements over the twentieth century—and was proficient and productive in several of them. He starts classically, but soon descends into surrealistic nightmares and all the other things he became famous for. And then, finally, in the end, after all this insanity of lines and cubes and shapes and trying to figure out meanings (or at least subjects), you come to the last painting in the exhibition, and it really looks like something a talented ten-year-old could draw - full of life and innocence and optimism.