The "Dictionnaire raisonné de l'architecture française du XIe au XVIe siècle" is a comprehensive reference work that details the architectural styles and developments in France from the 11th to the 16th century. It serves as an essential resource for understanding the evolution of Gothic architecture, Renaissance architecture, and other significant movements during this period. This dictionary includes entries on various architectural elements, notable buildings, and influential architects. It provides insights into the historical context and cultural significance of structures such as cathedrals, châteaux, and fortifications, making it a valuable tool for scholars, students, and enthusiasts of French architecture.