What type of lines create length and height in hair design?

Vertical lines are essential in hair design as they create the illusion of length and height. By utilizing vertical lines, hairstyles can appear longer and more elongated, which is particularly effective in adding a sense of sophistication and elegance to a look. These lines draw the eye upward, making the overall appearance more streamlined and less bulky.

In contrast, horizontal lines typically provide width and can make a hairstyle look broader. Diagonal lines can add interest and movement but are not primarily associated with elongation. Curved lines can soften a style but do not specifically enhance the perception of length or height as effectively as vertical lines do. Understanding the role of different lines in design is crucial for achieving the desired aesthetic in hairstyling.