Architectural drafting involves creating technical drawings to communicate building design ideas and specifications. Drawings use standardized rules and are considered a universal language for designers. They include details, dimensions, and information necessary to construct a design. Drawings are organized into sets including architectural, mechanical, electrical, site, and specialty drawings. Architectural drawings show building layout and aesthetics. Mechanical drawings illustrate plumbing, HVAC, and other physical systems. Electrical drawings show power distribution, lighting, and low-voltage wiring. Site drawings depict the structure's relationship to the property.