This document provides information about the American architect Louis Kahn and some of his notable works from the 20th century. It discusses Kahn's National Parliament building in Dhaka, Bangladesh, which used local materials like concrete and brick in a modernist style that represented the culture and traditional architecture of Bangladesh. It also describes Kahn's Salk Institute in California and the Indian Institute of Management in Ahmedabad, India, both of which featured geometrical designs, voids for natural light and ventilation, and considerations of climate and context. The document examines Kahn's philosophies of architecture and some of his design concepts like axial symmetry, central courtyards, and open versus closed spaces.