• Manuel Castells is our foremost theorist of the power of communication in modern society and won the Holberg International Memorial Prize in 2012
• Rich and wide-ranging analysis of the role of communication and social media in shaping responses to political change and financial crisis, drawing on examples such as the Arab Spring, the Occupy movement, Internet-based political campaigning, movements to prevent climate change, and the misinformation surrounding the Iraq war
• This book is a natural progression from his 'Network Society' trilogy - a powerful, forward-looking analysis of communication in the Network Society
• Builds on some of the themes of Castells' Internet Galaxy (OUP, 2001), and considers the social and political implications of recent phenomena such as social networking and blogging
• Draws on theories from across the social sciences: politics, sociology, psychology, communication studies, management studies

New to this edition

• The second edition of this timely book will include a substantial new introduction to take into account the role of technology, self-organization, and power in important recent events since first publication, including social movements, political upheavals, protests, and mobilizations such as the Arab Spring and the Occupy movement

We live in the midst of a revolution in communication technologies that affects the way in which people feel, think, and behave. The media have become the space where power strategies are played out. In the current technological context mass communication goes beyond traditional media and includes the Internet and mobile communication. In this wide-ranging and powerful book, Manuel Castells analyses the transformation of the global media industry by this revolution in communication technologies. He argues that a new communication system, mass self-communication, has emerged, and power relationships have been profoundly modified by the emergence of this new communication environment. Created in the commons of the Internet this communication can be locally based, but globally connected. It is built through messaging, social networks sites, and blogging, and is now being used by the millions around the world who have access to the Internet.Drawing on a wide range of social and psychological theories, Castells presents original research on political processes and social movements. He applies this analysis to numerous recent events—the misinformation of the American public on the Iraq War, the global environmental movement to prevent climate change, the control of information in China and Russia, Barak Obama's internet-based presidential campaigns, and (in this new edition) responses to recent political and economic crises such as the Arab Spring and the Occupy movement. On the basis of these case studies he proposes a new theory of power in the information age based on the management of communication networksJustly celebrated for his analysis of the network society, Castells here builds on that work, offering a well grounded and immensely challenging picture of communication and power in the 21st century. This is a book for anyone who wants to understand the dynamics and character of the modern world.

Manuel Castells is University Professor and the Wallis Annenberg Chair of Communication Technology and Society at the University of Southern California. He is also Professor Emeritus of Sociology and Planning, University of California, Berkeley, where he taught for 24 years. He is a Fellow of the American Academy of Political and Social Science, of the Academia Europaea, of the Spanish Royal Academy of Economics, and of the British Academy. His main books include the trilogy The Information Age: Economy, Society, and Culture (Blackwell, 1996-2003),Communication Power (OUP, 2009), and Networks of Outrage and Hope (Polity, 2012). He was a founding member of the board of the European Research Council and is a member of the Governing Board of the European Institute of Innovation and Technology.