KEY POINTS:
Steven Florio, an ad executive who worked his way to the top of the Conde Nast publishing empire, has died in New York City. He was 58.
He thrived by selling expensive advertising for luxury products to discerning readers in magazines like Vogue, Vanity Fair and The New Yorker.
The cause of death was complications of a heart attack, said a Conde Nast spokeswoman.
For 10 years, until 2004, Mr. Florio led Conde Nast, the magazine division of Advance Publications, the parent company owned by the rich Newhouse family.
