The document discusses the Brutalist architectural style that was popular from the 1950s through the mid-1980s. Brutalism is characterized by raw and exposed concrete materials that emphasize stark geometric forms with weighty, textured surfaces. Key features include tiny window openings, a combination of voids and solids giving walls an egg-crate appearance, and exposed mechanical systems. Several examples of Brutalist buildings are mentioned, including City Hall in Boston, the Convent of La Tourette from 1958, and Yale's School of Art and Architecture from 1958-1963 designed by Paul Rudolph.