Curved lines or S curves suggest sensuality, elegance and a serene sense of balance. S curves do not necessarily need to be S-shaped; any form of a winding line can be used. Some examples include rivers, streams, paths and even the human body. Curved lines appear graceful, beautiful, sensual, fun, and organic. The shape of a woman’s body, the idea of a winding country road in the mountains, and a river cutting through the forest all are idealized as being curvy. The most sought out type of lines in photography are those that have an S curve. This type of line is named as such because it looks like an S — it curves out to one direction and then comes back in the other.