| A | B |
| Circular | When you think curve, you may think circle. |
| Curvilinear | The shape is formed based on the outlines of circles to form dips and arcs. The resulting curve often has distinct sense of symmetry. |
| S | A curve that has a vertical nature with a form that looks like the letter āSā or strings of the letter. |
| Spiral | The spiral curve shape mirrors that of a nautilus shell. The shape has a large circular style shape that curves inward and tightens with every rotation. |
| Tilde-shaped | The long horizontal S, or tilde, curve is a common separator and can contain a single dip or arc or unlimited number of high and low points. |
| Contour line | A line that defines the edge of something is a contour line. |
| Decorative line | This style of line is used to embellish an object, text or design element. |
| Dividing line | Lines the break up and define separate parts of a design are dividing lines. |
| Implied line | Sometimes a line is not really a line at all. But you know it is there. This is an implied line. |
| Psychic line | Elements that cause the eye to create a motion like a line would are considered psychic lines. |
| Thick strokes | Are strong and provide emphasis to surrounding elements. |
| Thin strokes | Are fragile and elegant. (Hairline to a couple of points.) |
| Vertical orientation | Is strong, dignified and filled with energy. |
| Horizontal orientation | Is calm and comforting. It exists without conflict. |
| Diagonal orientation | Conveys a sense of off-balance. It can imply upward or downward motion (and associated feelings) and can create a sense of tension or excitement. |