WEBTALS OF BUILDING DRAWING1-1. Introdu. tion to building drawing 1-2. Brief hi. tory of building drawing 1-3. Preparation of drawi. gs 1-4. Working drawings 1-5. I. terpretation of drawings 1-6. Building plans approval procedu. r 2. UNDAMENTALS O. BUILDINGS2-1. Building 2-2. Classification of buildings bas.