Technical drawing is a form of visual communication used to convey information through the use of precise drawings. It is used in many fields, such as engineering, architecture, and design. A BLUEPRINT is a type of technical drawing that shows the details of a project or product. It typically includes measurements, materials, and other specifications. A DIAGRAM is another type of technical drawing that uses symbols and lines to represent a system or process. Both blueprints and diagrams are essential tools for creating and understanding technical drawings.