Between 1939 and 1942, one of America's leading universities recruited 268 of its healthiest and most promising undergraduates to participate in a revolutionary new study of the human life cycle. The originators of the program, which came to be known as the Grant Study, felt that medical research was too heavily weighted in the direction of disease, and their intent was to chart the ways in which a group of promising individuals coped with their lives over the course of many years.

Nearly forty years later, George E. Vaillant, director of the Study, took the measure of the Grant Study men. The result was the compelling, provocative classic, Adaptation to Life, which poses fundamental questions about the individual differences in confronting life's stresses. Why do some of us cope so well with the portion life offers us, while others, who have had similar advantages (or disadvantages), cope badly or not at all? Are there ways we can effectively alter those patterns of behavior that make us unhappy, unhealthy, and unwise?

George Vaillant discusses these and other questions in terms of a clearly defined scheme of "adaptive mechanisms" that are rated mature, neurotic, immature, or psychotic, and illustrates, with case histories, each method of coping.

Historians have long been perplexed by the complete disappearance of the medieval Chinese aristocracy by the tenth century—the “great clans” that had dominated China for centuries. In this book, Nicolas Tackett resolves the enigma of their disappearance, using new, digital methodologies to analyze a dazzling array of sources.

Tackett systematically mines thousands of funerary biographies excavated in recent decades—most of them never before examined by scholars—while taking full advantage of the explanatory power of Geographic Information System (GIS) methods and social network analysis. Tackett supplements these analyses with extensive anecdotes culled from epitaphs, prose literature, and poetry, bringing to life women and men who lived a millennium in the past. The Destruction of the Medieval Chinese Aristocracy demonstrates that the great Tang aristocratic families adapted to the social, economic, and institutional transformations of the seventh and eighth centuries far more successfully than previously believed. Their political influence collapsed only after a large number were killed during three decades of extreme violence following Huang Chao’s sack of the capital cities in 880 CE.

If contemporary culture were a school, with all the tasks and expectations meted out by modern life as its curriculum, would anyone graduate? In the spirit of a sympathetic teacher, Robert Kegan guides us through this tricky curriculum, assessing the fit between its complex demands and our mental capacities, and showing what happens when we find ourselves, as we so often do, in over our heads. In this dazzling intellectual tour, he completely reintroduces us to the psychological landscape of our private and public lives.

A decade ago in The Evolving Self, Kegan presented a dynamic view of the development of human consciousness. Here he applies this widely acclaimed theory to the mental complexity of adulthood. As parents and partners, employees and bosses, citizens and leaders, we constantly confront a bewildering array of expectations, prescriptions, claims, and demands, as well as an equally confusing assortment of expert opinions that tell us what each of these roles entails. Surveying the disparate expert “literatures,” which normally take no account of each other, Kegan brings them together to reveal, for the first time, what these many demands have in common. Our frequent frustration in trying to meet these complex and often conflicting claims results, he shows us, from a mismatch between the way we ordinarily know the world and the way we are unwittingly expected to understand it.

In Over Our Heads provides us entirely fresh perspectives on a number of cultural controversies—the “abstinence vs. safe sex” debate, the diversity movement, communication across genders, the meaning of postmodernism. What emerges in these pages is a theory of evolving ways of knowing that allows us to view adult development much as we view child development, as an open-ended process born of the dynamic interaction of cultural demands and emerging mental capabilities. If our culture is to be a good “school,” as Kegan suggests, it must offer, along with a challenging curriculum, the guidance and support that we clearly need to master this course—a need that this lucid and richly argued book begins to meet.

Groping around a familiar room in the dark, or learning to read again after a traumatic brain injury; navigating a virtual landscape through an avatar, or envisioning a scene through the eyes of a character—all of these are expressions of one fundamental property of life, Alain Berthoz argues. They are instances of vicariance, when the brain sidesteps an impasse by substituting one process or function for another. In The Vicarious Brain, Creator of Worlds, Berthoz shows that this capacity is the foundation of the human ability to think creatively and function in a complex world.

Vicariance is often associated with proxies and delegates, but it also refers to a biological process in which a healthy organ takes over for a defective counterpart. Berthoz, a neuroscientist, approaches vicariance through neuronal networks, asking how, for example, a blind person can develop a heightened sense of touch. He also describes how our brains model physical reality and how we use these models to understand things that are foreign to us. Forging across disciplinary boundaries, he explores notions of the vicarious in paleontology, ethology, art, literature, and psychology.

Through an absorbing examination of numerous facets of vicariance, Berthoz reveals its impact on an individual’s daily decision making and, more broadly, on the brain’s creation of worlds. As our personal and social lives are transformed by virtual realities, it is more crucial than ever before that we understand vicariance within our increasingly complex environment, and as an aspect of our own multiplying identities.