Rectangle-shaped bodies are those with little or no defined waist and no curves. We want to play up any curves you do have or create the illusion of curves. A waist is created with a belt or peplum. Flared skirts are your friend since they add width on your lower half, giving the illusion of curves. Structured jackets are great, as long as they have darts or seaming that nip in your waist or have a drawstring at the waist that creates the illusion of a waistline.