After traveling to Las Vegas and New Mexico as a journalist, Shaw and his wife moved to
New York City in 1932.
Soon after their arrival, Shaw's wife Lucille began a job as a fact checker at the popular magazine, The New Yorker. Shaw became an assitant editor at The New Yorker and oversaw the magazine's coverage of World War II. It was Shaw who persuaded then editor and founder of The New Yorker, Harold Ross, to print John Hersey's Hiroshima. After Ross' death in 1951, Shaw became editor of New York Magazine. He was editor for 53 years.