Mary Gabriel is the author of Love and Capital: Karl and Jenny Marx and the Birth of a Revolution, about Karl Marx and his wife Jenny von Westphalen.

It was a finalist for the Pulitzer Prize, the National Book Award and the National Book Critics Circle Award.

[2] She also wrote Notorious Victoria: The Life of Victoria Woodhull, Uncensored — about suffragette Victoria Woodhull —, and The Art of Acquiring: A Portrait of Etta and Claribel Cone — about collectors and travelers Cone sisters.

[3] Her fourth book, Ninth Street Women : Lee Krasner, Elaine de Kooning, Grace Hartigan, Joan Mitchell, and Helen Frankenthaler — Five Painters and the Movement That Changed Modern Art, was published in September 2018.

[4][5] Mary Gabriel was educated in the United States and France, and worked in Washington and London as a Reuters editor for nearly two decades.