The rich holdings in the Mark J. Millard Architectural Collection at the National Gallery of Art can be considered a formal manifestation of French classical architectural design and theory during almost four centuries of its development. This volume includes an introduction to French architecture followed by entries listed alphabetically by author. Each entry contains a bibliographic description, as well as details about the specific publication, such as a summary description of all parts and singularities of the book, number and types of illustrations, names of artistic designers and engravers, material and decoration of each volume or set, and provenance information. Explanatory texts discuss the historical and artistic contexts for these books, including their theoretical and practical contributions. The artistic value of this collection is emphasized through the numerous reproductions that illustrate page design and ornamentation.