In her new book, Invisible Women, Carolina Criado Perez devastatingly breaks down hundreds of studies to show how sex-disaggregated data is utterly failing women. Because data is collected largely on men’s experiences—and with those experience’s assumed to be the default—women become the aberration.

Perez says this “data gap” on women’s daily existence costs them in time, money, and even their lives, as they are left out of consideration in everything from urban planning, to the arts and