The application of Linear Perspective has revolutionized the create concept design of 3D objects ranging from architecture to household objects to machine design. The Vase Design (plate 6A) with the help of ‘wireframe’ linear perspective has generated a virtual 3D perspective of the object. Similarly a metal structure for grounding heavy machine (plate 6B) is conceived with the help of linear perspective. Leonardo de Vinci’s futuristic concept drawings are entirely based on the principles of linear perspective. Leonardo’s drawing of a 1488 Flying Machine (plate 6C) has detail concept sketch of the machine based on perspective principle. Thus, perspective drawing helps to conceptualize a 3D object on a 2D surface plane.