Form is a lot more than shape. It hovers somewhere at the intersection of function and context, and exists in all works of design, even if they are not visual. Music has form, as does literature and movement and smells and people. When we say someone has good form, it can relate to the way they look, walk, speak or to the assorted behaviors that add up to the way in which they carry themselves. It has to do with a thing’s essential character. Form has a kind of majesty, and it is often easier to see in simple things.