INTRODUCTION OF ENGINEERING DRAWING Simply you can say, it is a special type of language globally used for engineers or technical persons to communicate between them for fulfillment of target or making any geometrical shaped object or rather say any project. Suppose, there is a building or bridge construction or maybe the construction of an electric or power substation, or maybe in a mechanical workshop, we need various types of technical persons or specialists for construction or production. As an example, some engineers ensure the stability of load capacity of the ground and how much load can bear that ground by doing the field survey, some technical persons or engineers develop the structure or construction, and some technical person completes the fabrication ( i.e. riveting or welding ) portions, some technical persons or engineers develop the electrical supply connections and so on. All technical persons and engineers come together to complete a project or projects but they all n