Known as the "wizard of sound", he is best known for his role in creating the controversial "Daisy" television advertisement for the 1964 Lyndon B. Johnson campaign.
He earned a degree in graphic design from the Pratt Institute and worked as a civilian artist for the United States Navy during World War II.
While continuing to create product ads, he created thousands of political ads for such candidates as Lyndon Johnson, Jimmy Carter, Bill Clinton, Ted Kennedy, Hubert Humphrey, George McGovern, and Daniel Patrick Moynihan.
[6][10] In the 1980s, he resumed these efforts, creating many anti-smoking commercials as well as media work for such causes as fire prevention, AIDS awareness, educational funding, and nuclear disarmament.
In 2007, Schwartz's entire body of work from 1947 to 1999, including field recordings and commercials, was acquired by the Library of Congress.