This visual dictionary provides definitions and illustrations of common building and construction terms. It includes entries on air barriers, attic ventilation components, backhoes, batter boards, brick bonds and arches, building materials like concrete masonry units and gypsum board, doors, electrical components, framing elements, insulation types, plumbing fixtures, rebar, roofing materials and components, siding, stonework, vapor retarders, waterproofing, windows, and other construction terms. Each entry concisely defines the term and shows an example photo for reference.