To what extent is Simone de Beauvoir's study The Second Sex still relevant? From her work it emerges that patriarchy is a many-headed monster. Over the past decades, various heads of this monster have been slayed: important breakthroughs have been achieved by and for women in law, politics, and economics. Today, however, we witness movements in the opposite direction, such as a masculinist political revival in different parts of the world, the spread of the neoliberal myth of the Super Woman, the rise of transnational networks of trafficking in women and children, and a new international 'Jihadism'. This suggests that patriarchy is indeed a Hydra: a multi-headed monster that grows several new heads every time one head is cut off. Since different - often hybrid - heads of patriarchy dominate in different settings, feminism requires a variety of strategies. Women's movements all over the world today are critically creating new models of self and society in their own contexts. Drawing on notions of Beauvoir, as well as Michel Foucault, this book outlines a 'feminism in a new key' which consists of women's various freedom practices, each hunting the Hydra in their own key - but with mutual support.

“A fascinating book.”
—James Ryerson, New York Times Book Review

A Smithsonian Best Science Book of the Year
Winner of the PROSE Award for Best Book in Language & Linguistics

Carved into our past and woven into our present, numbers shape our perceptions of the world far more than we think. In this sweeping account of how the invention of numbers sparked a revolution in human thought and culture, Caleb Everett draws on new discoveries in psychology, anthropology, and linguistics to reveal the many things made possible by numbers, from the concept of time to writing, agriculture, and commerce.

Numbers are a tool, like the wheel, developed and refined over millennia. They allow us to grasp quantities precisely, but recent research confirms that they are not innate—and without numbers, we could not fully grasp quantities greater than three. Everett considers the number systems that have developed in different societies as he shares insights from his fascinating work with indigenous Amazonians.

“This is bold, heady stuff… The breadth of research Everett covers is impressive, and allows him to develop a narrative that is both global and compelling… Numbers is eye-opening, even eye-popping.”
—New Scientist

“A powerful and convincing case for Everett’s main thesis: that numbers are neither natural nor innate to humans.”
—Wall Street Journal