Prior to joining Harper’s, Cox was a senior editor with The Paris Review.
Cox will succeed Ellen Rosenbush, who will continue to contribute to Harper’s as an editor at large.
“I brought Chris on board soon after I became editor and he’s been invaluable since day one,” said Rosenbush, in an announcement. “I know that I’m leaving the magazine in the best possible hands.”
Cox’s appointment is effective Nov. 1.