Are all film stars linked to Kevin Bacon? Why do the stock markets rise and fall sharply on the strength of a vague rumour? How does gossip spread so quickly? Are we all related through six degrees of separation? There is a growing awareness of the complex networks that pervade modern society. We see them in the rapid growth of the Internet, the ease of global communication, the swift spread of news and information, and in the way epidemics and financial crises develop with startling speed and intensity. This introductory book on the new science of networks takes an interdisciplinary approach, using economics, sociology, computing, information science and applied mathematics to address fundamental questions about the links that connect us, and the ways that our decisions can have consequences for others.

本书主要选取五篇格兰诺维特的论文，向国内读者介绍社会关系网络与经济行动间的关系，也就是新经济社会学以及关系管理学的一些主要理论概念。新经济社会学的发展不只是社会学理论上的一大突破，网络分析法更改变了众对社会结构的认识。这一革命性的学术发展，其影响力并不止于社会学界，对管理学及管理方法的影响也有目共睹。

从鸡尾酒会到恐怖分子的巢穴，从远古的细菌到国际组织——所有这一切各自都是一种网络，都是一个令人惊讶的科学革新的一部分。21世纪初，有科学家发现，网络具有深层的秩序，依据简单而强有力的规则运行。这一领域的知识帮助我们了解时尚、病毒等的传播机制，了解生态系统的稳健性，以及经济体系的脆弱性——甚至是民主的未来。 一位致力于研究“链接和节点”的科学家将首次带领我们领略网络革新的内幕。在本书中，作者生动地讲述了相互联系的系统的历史：从瑞士数学家莱奥哈尔德·欧拉18世纪末对图论的开创性研究，至生物学家基于对细胞网络的了解而展开的治疗癌症药物的研究等。 本书叙事生动，充满真知灼见，它使我们认识了许多现代社会的“制图师”，这些人正在多个科学领域研究绘制网络地图，在超级计算机的帮助下，他们正一步步揭示出社会关系网络、企业和细胞等拥有的相似性其实超出了它们之间的差异。他们的发现为我们提供了了解自己周围相互连接的世界的重要的新视角。

Social network analysis is used widely in the social and behavioral sciences, as well as in economics, marketing, and industrial engineering. The social network perspective focuses on relationships among social entities and is an important addition to standard social and behavioral research, which is primarily concerned with attributes of the social units. Social Network Analysis: Methods and Applications reviews and discusses methods for the analysis of social networks with a focus on applications of these methods to many substantive examples. It is a reference book that can be used by those who want a comprehensive review of network methods, or by researchers who have gathered network data and want to find the most appropriate method by which to analyze it. It is also intended for use as a textbook as it is the first book to provide comprehensive coverage of the methodology and applications of the field.