The provocative and compelling story of one of the most fascinating and influential figures of the twentieth century: Margaret Sanger, the founder of Planned Parenthood—an indomitable woman who, more than any other, and at great personal cost, shaped the sexual landscape we inhabit today.

Ellen Feldman, a 2009 Guggenheim fellow, is the author of Scottsboro, which was shortlisted for the Orange Prize; The Boy Who Loved Anne Frank; and Lucy, among others.