Winner of the Eleanor Maccoby Book Award in Developmental Psychology, American Psychological Association
Winner of a PROSE Award, Association of American Publishers
Shortlist, Cognitive Development Society Book Award
A Choice Outstanding Academic Title of the Year

A Natural History of Human Morality offers the most detailed account to date of the evolution of human moral psychology. Based on extensive experimental data comparing great apes and human children, Michael Tomasello reconstructs how early humans gradually became an ultra-cooperative and, eventually, a moral species.

“Tomasello is convincing, above all, because he has run many of the relevant studies (on chimps, bonobos and children) himself. He concludes by emphasizing the powerful influence of broad cultural groups on modern humans… Tomasello also makes an endearing guide, appearing happily amazed that morality exists at all.”
—Michael Bond, New Scientist

“Most evolutionary theories picture humans as amoral ‘monads’ motivated by self-interest. Tomasello presents an innovative and well-researched, hypothesized natural history of two key evolutionary steps leading to full-blown morality.”
—S. A. Mason, Choice

A Wall Street Journal Favorite Read of the Year
A Guardian Top Science Book of the Year

Tool-making or culture, language or religious belief: ever since Darwin, thinkers have struggled to identify what fundamentally differentiates human beings from other animals. In this much-anticipated book, Michael Tomasello weaves his twenty years of comparative studies of humans and great apes into a compelling argument that cooperative social interaction is the key to our cognitive uniqueness. Once our ancestors learned to put their heads together with others to pursue shared goals, humankind was on an evolutionary path all its own.

“Michael Tomasello is one of the few psychologists to have conducted intensive research on both human children and chimpanzees, and A Natural History of Human Thinking reflects not only the insights enabled by such cross-species comparisons but also the wisdom of a researcher who appreciates the need for asking questions whose answers generate biological insight. His book helps us to understand the differences, as well as the similarities, between human brains and other brains.”
—David P. Barash, Wall Street Journal

“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