Wittgenstein frequently uses the word 'aspect' (Aspekt) in his writings from 1947 to 1949. There he uses the word along with aspect-seeing and aspect-change, so that readers are misled into thinking his primary concern in using the word is something like Gestalt psychology or philosophy of psychology per se. However, Wittgenstein's late treatment of aspect is only a special case of a more general problem, namely phenomenology. In the middle-period writings, the word 'aspect' refers to a phenomenological object. Basically, Wittgenstein's aspect means the way an object appears to us. For him, an 'aspect' is a phenomenological object.