A Bézier Curve is a mathematical curve used in computer graphics and related fields to model smooth curves. It is defined by a set of control points, with the simplest form being a linear curve defined by two points. More complex Bézier curves, such as quadratic and cubic, use three or four control points, allowing for more intricate shapes. These curves are widely used in design software, animation, and font creation because they provide a simple way to create and manipulate curves. The flexibility of Bézier curves makes them essential in applications like Adobe Illustrator, AutoCAD, and 3D modeling.