What term refers to the shape of the head?

The term "head form" specifically refers to the overall shape and contour of the head, which is an important aspect in hairstyling. Understanding head form helps stylists determine how to cut, style, and shape hair to enhance a client's features and achieve a balanced look. By identifying the head form, a hairstylist can create styles that complement the natural shape of the head, ensuring that hairstyles suit the client's unique characteristics.

The other options, while they may seem relevant, do not precisely capture the terminology used in professional hairstyling. "Head shape" generally serves as a more informal description and lacks the technical nuance of "head form." "Head structure" could imply a more anatomical perspective, but does not focus specifically on the visible shape important for styling. "Skull form" is too specialized and refers more to the bony structure underlying the outer shape, which is not the primary concern when considering hairstyles. Understanding these distinctions is crucial for a comprehensive grasp of hairstyling principles.