Philip Cortelyou Johnson was an American architect who designed modern and postmodern architecture. Among his best-known designs are his modernist Glass House in New Canaan, Connecticut; the postmodern 550 Madison Avenue in New York City, designed for AT&T; 190 South La Salle Street in Chicago; the Sculpture Garden of the Museum of Modern Art; and the Pre-Columbian Pavilion at Dumbarton Oaks. In his obituary, The New York Times wrote in January 2005 that his works "were widely considered among the architectural masterpieces of the 20th century."

An architect is a person who plans, designs, and oversees the construction of buildings. To practice architecture means to provide services in connection with the design of buildings and the space within the site surrounding the buildings that have human occupancy or use as their principal purpose. Etymologically, the term architect derives from the Latinarchitectus, which derives from the Greek, i.e., chief builder.