This document discusses architectural symbols used in architectural drawings. It begins by defining architectural symbols as symbols that represent items like brick, concrete, doors and windows. It then outlines three main types of architectural symbols: 1) material hatching symbols that represent materials like earth and concrete, 2) architectural symbols that indicate dimensions, north, and section lines, and 3) symbols that indicate standard sizes of architectural items like doors, windows, and plumbing fixtures. Finally, students are assigned to draft all the symbols discussed in the document using light pencil first before finalizing with darker pencil.