Consider the length of the skirt because when the hem of a skirt falls across a thick part of the leg, either thigh or calf, it makes you look wider and shorter. However, many short women who have inverted triangle shaped figures also have slender legs. In that case, you may be able to wear a mini-skirt, but avoid mini-skirts unless you do have slender legs. Otherwise, keep the skirt length around the knee at the most flattering length. In most cases, the best skirt length for short women is just above the knee, at the knee, or just below the knee. If you're wearing a pegged skirt, it's essential that the hem be above the knee so that you're able to walk in it.
If you wear boots with a skirt, the boots should be high enough and your skirt hem low enough that there's no gap between them. This gives you an unbroken vertical line and helps you look taller.
In our example above, the purple skirt, available in petite sizes, from Gap (Buy Direct) features smocking detail at the hip, side pockets at the hip, and fullness in the styling, all features which will emphasize the hips.