The pioneering young scientist whose work on the structure of small worlds has triggered an avalanche of interest in networks. In this remarkable book, Duncan Watts, one of the principal architects of network theory, sets out to explain the innovative research that he and other scientists are spearheading to create a blueprint of our connected planet. Whether they bind computers, economies, or terrorist organizations, networks are everywhere in the real world, yet only recently have scientists attempted to explain their mysterious workings. From epidemics of disease to outbreaks of market madness, from people searching for information to firms surviving crisis and change, from the structure of personal relationships to the technological and social choices of entire societies, Watts weaves together a network of discoveries across an array of disciplines to tell the story of an explosive new field of knowledge, the people who are building it, and his own peculiar path in forging this new science.

Watts, one of the principal architects of network theory, sets out to explain the innovative research that he and other scientists are spearheading to create a blueprint of this connected planet.

Six degrees of separation' is a clich-, as is 'it's a small world', both clich-s of the language and clich-s of everyone's experience. We all live in tightly bonded social networks, yet linked to vast numbers of people more closely than we sometimes think

'Six degrees of separation' is a cliche, as is 'it's a small world', both cliches of the language and cliches of everyday experience. But it's also an intriguing idea with a long history and some surprising implications. We all live in tightly bonded social networks, yet linked to vast numbers of people more closely than we sometimes think. Scientists have begun to apply insights from the theoretical study of networks to understand forms as superficially different as social networks and electrical networks, computer networks and economic networks, and to show how common principles underlie them all. Duncan J. Watts explores the science of networks and its implications, ranging from the Dutch tulipmania of the seventeenth century, the success of Harry Potter, the impact of September 11th on Manhattan, to the structure of the world wide web.

Why is the Mona Lisa the most famous painting in the world? Why did Facebook succeed when other social networking sites failed? Did the surge in Iraq really lead to less violence? And does higher pay incentivize people to work harder? If you think the answers to these questions are a matter of common sense, think again. As sociologist and network science pioneer Duncan Watts explains in this provocative book, the explanations that we give for the outcomes that we observe in life-explanations that seem obvious once we know the answer-are less useful than they seem. Watts shows how commonsense reasoning and history conspire to mislead us into thinking that we understand more about the world of human behavior than we do; and in turn, why attempts to predict, manage, or manipulate social and economic systems so often go awry. Only by understanding how and when common sense fails can we improve how we plan for the future, as well as understand the present-an argument that has important implications in politics, business, marketing, and even everyday life.

In astonishing and unflinching detail, a noted science journalist explains how Earth's climate will be impacted with every degree of increase in global warming--and what can be done about it now.