This document defines and provides examples of different types of conic sections - parabolas, ellipses, and hyperbolas. It explains that conic sections are curves formed by the intersection of a plane with a cone, and that points on a conic section have a fixed ratio between their distance to a focus point and its directrix line, known as eccentricity. Eccentricity values distinguish the different conic section types. Examples of each in diagrams and applications like planetary orbits, bicycle gears, and network synchronization are also provided.