As the translator Henry Van Brunt wrote in his introduction, the work is "an appeal to philosophical analysis against the tyranny of tradition and usage in matters of architectural design."
Eugène Emmanuel Viollet-le-Duc was a French architect and theorist, famous for his "restorations" of medieval buildings. Born in Paris, he was as central a figure in the Gothic Revival in France as he was in the public discourse on "honesty" in architecture, which eventually transcended all revival styles, to inform the emerging spirit of Modernism.