A "hairstyle for square face shape" is a type of hairstyle designed to complement the angles and balance the proportions of a square-shaped face. An example is a side-swept bang with soft layers that frame the face, such as the hairstyle of actress Keira Knightley.
Choosing the right hairstyle for a square face shape is important for creating a harmonious and flattering look. It can help to soften the angular features, elongate the face, and create an overall more balanced and aesthetically pleasing appearance. One key historical development in the field of hair styling is the advent of angled bobs in the 1920s, which helped to popularize hairstyles that flattered square face shapes.