ROBERT A. GOTTLIEB, editor of The New Yorker magazine since 1987, will be replaced in the fall by Tina Brown, editor of Vanity Fair, the magazines said Tuesday.
The New Yorker's owner, S.I. Newhouse Jr., said in a statement that Mr. Gottlieb was asked to resign because of "conceptual differences" over the future of the magazine. Both magazines are part of Newhouse's Advance Publications, which announced the changes.
Since Ms. Brown took over Vanity Fair in 1984, it has gone from selling 260,000 issues a month to 1 million and stirred controversy with some of its covers.
Brown says she intends to "preserve The New Yorker's literary and intellectual standards, to contribute to its reputation of quality, and to introduce it to a new generation of readers."
She will be succeeded immediately by Graydon Carter, editor of the weekly newspaper The New York Observer.