Jay Chiat started his career as an American advertising
copywriter. Chiat was born to a Jewish family in the Bronx in New York City and grew up in Fort Lee, New Jersey. He attended Rutgers College, graduating in 1953 and was inducted in its Hall of Distinguished Alumni in 2000.
As an adult he shortened his legal name to Jay Chiat. He served in the United States Air Force. In 1962, Chiat teamed up with Guy Day to form the Chiat advertising agency in Los Angeles.
Chiat went on to create some very memorable advertising campaigns and was named U.S. Agency of the Decade in 1989. Their clients included powerhouses such as Apple Computer, Nike, Energizer, Nissan, Infiniti, American Express and Reebok.