(Required of first-year M.Arch. I and M.E.D. students; available as an elective for M.Arch. II students.) This course explores the history of Western architectural theory, from 1750 to the present, through the close reading of primary texts. Lectures place the readings in the context of architectural history; the texts are discussed in required discussion sections. Topics include theories of origin, type and character, the picturesque, questions of style and ornament, standardization and functionalism, critiques of modernism, as well as more contemporary debates on historicism, technology, and environmentalism.