"In this important study, Damon L. Perry provides an insight-laden and up-to-date account of the Islamist movement that operates today in Britain. At a time when the British Government is thinking hard about how to deal with ‘non-violent extremism’, this book is valuable reading for policymakers and academics alike."Dr. Martyn Frampton, Reader of Modern History at Queen Mary University of London and the author of The Muslim Brotherhood and the West: A History of Enmity and Engagement."This book provides a most comprehensive and nuanced analysis of ‘participationist’ Islamism in Britain associated with the Muslim Brotherhood and Jamaat-i-Islami. It is sharply observed, grounded in scholarship and will be of great use to anyone studying Islamism or working in counter-extremism, counterterrorism, or social policy."Professor John Bew, Professor in History and Foreign Policy at the War Studies Department, King’s College London, and former co-Director of the International Centre for the Study of Radicalisation and Political Violence