Fashion is neither just apparel or things that you wear, in this term accessories like necklace, bangles, earings, even glasses, more over it's seen as you entirely from head to toe, include your attitude. Fashion reflects your inner self, it's very you and whatever you are, when you apply it to your fashion, you let people see what are you deep inside implicitly. Then the "don't judge book by its cover" might not always be right.