A line is a fundamental element in geometry and art, representing a continuous extent of length without any breadth. In its simplest form, a line is an infinite series of points extending in both directions. Lines define shapes, create boundaries, and convey movement or direction. In mathematics, lines can be straight or curved; their properties are described using equations. In art and design, lines serve as a crucial tool for composition, guiding the viewer’s eye and adding depth, texture, and emphasis to a piece. In technical drawings, graphical representations, or artistic expressions, lines are essential for structure and communication, providing clarity and precision across various disciplines.