This visual dictionary defines and describes various building materials and components used in construction. It includes entries on air barriers, attic ventilation components like soffit vents and ridge vents, heavy machinery like backhoes, different types of brick bonds and sizes, concrete joints, framing elements, plumbing fixtures, insulation, roofing materials and components, siding materials, stone types, vapor retarders, windows, and more. Each entry provides a brief definition or description of the term.