'Disinformation is a plague that resists efforts to eradicate it. Truth - a foundation of democratic discourse - is its principal victim. Countering Online Propaganda and Extremism presents thoughtful and comprehensive analyses of this phenomenon written by an all-star, multidisciplinary roster of experts. For anyone who is teaching courses about these matters or is just personally committed to preserving open and free debate about important issues, this book is essential reading.'-- Philip Seib, University of Southern California, USA

'I highly recommend reading this book, if you want to know more about the dark side of digital diplomacy. The authors reveal how the use of digital technologies as disinformation and propaganda tools has started to threaten the global order. The book is a page-turner.'--Matti Saarelainen, Director of The European Centre of Excellence for Countering Hybrid Threats, Helsinki, Finland

'Countering Online Propaganda and Extremism is a remarkably prescient and prodigious interdisciplinary volume situating the catalytic challenge of disinformation - including its sources, its drivers, and its consequences - within a succinct conceptual framework that researchers, practitioners, and students will find tremendously useful. It weaves together policy and research expertise to tackle some remarkably thorny questions, ranging from attribution and deterrence, the line between public diplomacy and propaganda, the dark side of digital diplomacy to the value and character of moral authority in this space. The book has lasting power and will certainly serve as a cardinal text for all those interested in understanding, studying, and addressing the internecine threat disinformation presents to our democratic institutions.'-- Shawn Powers, Senior Advisor, Global Strategy & Innovation, US Agency for Global Media