After she left Viking Press, Kennedy Onassis was hired by Doubleday, where she worked as an associate editor. Some of the books she edited for the company were Larry Gonick's "The Cartoon History of the Universe", the English translation of the three volumes of Naghib Mahfuz's "Cairo Trilogy", and autobiographies of ballerina Gelsey Kirkland, singer-songwriter Carly Simon, and fashion icon Diana Vreeland. 