The Library of Congress classification for architecture is NA. More specifically, NA is broken down as follows:
- NA1-60 General
- NA100-130 Architecture and the state
- NA105 United States
- NA106 General works
- NA107 .A-W By state, A-W
- NA108 .A-Z By city, A-Z
- NA109 .A-Z Other regions or countries, A-Z
- NA120-130 Examination and licensing of architects
- NA190-1555.5 History, including historical monuments treated from the architectural point of view
- NA210-340 Ancient architecture
- NA350-499 Medieval architecture
- NA500-682 Modern architecture
- NA701-1614 Architecture of special countries
- NA1995 Architecture as a profession
- NA1996 Business management for architects
- NA1997 Women architects
- NA2000-2320 Study and teaching. Research
- NA2335-2360 Competitions, including individual awards, prizes, etc.
- NA2400-2460 Museums. Exhibitions
- NA2500-2599 General works
- NA2541-2543 Architecture in relation to special subjects (e.g., climate, environment, human factors, water, society, tecnology, children, etc.)
- NA2545 Architecture and the handicapped
- NA2599.5-2599.9 Architectural criticism
- NA2695-2728 Architectural drawing
- NA2750-2817 Architectural design
- NA2765 Space
- NA2770 Plan
- NA2775 Elevation
- NA2780 Rendering in color, pen and ink, etc.
- NA2790 Models and modeling
- NA2793 Remodeling buildings for other use
- NA2794 Daylighting
- NA2795 Color in architecture
- NA2796 Mirrors in architecture
- NA2797 Photogrammetry in architecture
- NA2800 Architectural acoustics
- NA2835-4050 Architectural details, motives, etc. (e.g, entrances, piers, columns, arches, domes, roofs, gables, towers, walls, ceilings, molding, friezes, floors, tiles, gateways, doors, windows, awnings, chimneys, stairs, balconies, etc.)
- NA3310-4050 Architectural decoration (e.g., decorative plaster, concrete, brick, tiles, mosaic, metalwork, etc.)
- NA4100-8480 Special classes of buildings
- NA4100-4145 Classed by material (wood, masonry, etc.)
- NA4150-4160 Classed by form
- NA4170-8480 Classed by use
- NA4170-7020 Public buildings
- NA4590-5621 Religious architecture
- NA7100-7884 Domestic architecture. Houses. Dwelling
- NA7910-8125 Clubhouses, guild houses, etc
- NA8200-8260 Farm architecture
- NA8300-8480 Outbuildings, gates, fences, etc.
- NA9000-9428 Aesthetics of cities. City planning and beautifying