ISIS Propaganda offers a comprehensive overview and analysis of the Islamic State’s (IS) propaganda. Combining a range of different theoretical perspectives from across the social sciences and using rigorous methods, the authors pursue several interconnected tasks. They trace the origins of IS’s message, they lay bare the strategic logic guiding its evolution, they examine each of its many components (magazines, videos, music, social media, etc.) and show how they work together to radicalize audiences’ worldviews, and they highlight the challenges such a “full-spectrum propaganda” raises in terms of counterterrorism. The volume hence not only represents a one-stop point for any analyst of IS and Salafi-jihadism, but also a rich contribution to the study of text and visual propaganda, radicalization and political violence, and international security.