On Election Day in 1996, TheAtlantic.com launched a weekly editorial cartoon feature drawn by Sage Stossel and named (aptly enough) "Sage, Ink." Since then, Stossel's whimsical work has been featured by the New York Times Week in Review, CNN Headline News, Cartoon Arts International/The New York Times Syndicate, The Boston Globe, Nieman Reports, Editorial Humor, The Provincetown Banner (for which she received a 2009 New England Press Association Award), and elsewhere. Her work has also been included in Best Editorial Cartoons of the Year, (2005, 2006, 2009, and 2010 editions) and Attack of the Political Cartoonists. Her children's book, On the Loose in Boston, was published in June 2009.

Sage Stossel grew up in a suburb of Boston and attended Harvard University, where she majored in English and American Literature and Languages and did a weekly cartoon strip about college life, called "Jody," for the Harvard Crimson. From 2004 to 2007, she served as Books Editor of the Radcliffe Quarterly

After college she took what was intended to be a temporary summer position securing electronic rights to articles from The Atlantic's archive for use online. Intrigued by The Atlantic's rich history and the creative possibilities in helping to launch a digital edition of the magazine on the Web, she soon joined The Atlantic full time. As the site's former executive editor, she was involved in everything from contributing reviews, author interviews, and illustrations, to hosting message boards and producing a digital edition of The Atlantic for the Web.

Stossel lives in Cambridge, Massachusetts.