"Margaret Sanger set out to remake the world and did just that. This fascinating collection lets us see in vivid detail how Sanger expanded the birth control movement worldwide and fought to make contraception a weapon in the battle for women's equality. In these pages we see Sanger in all her complexity, and that complexity helps us understand the magnitude of her achievements. This is an invaluable addition to the historical record."--Jonathan Eig, author of The Birth of the Pill