Dictionnaire raisonné de l'architecture française du XIe au XVIe siècle
Viollet-le-Duc's Dictionnaire raisonné de l'architecture française, published in Paris by B. Bance in 1854, is a reference dictionary of French architecture from the 11th to 16th centuries, written for architects and students of medieval building. Its plates are numbered engraved technical drawings of masonry, arches, vaults and roof framing, with lettered keys and scale bars. A designer could draw on their crisp linear hatching, precise construction geometry and clear labelled diagrams of Gothic structure.
