Radzuwan Ab Rashid is the Deputy Dean of Research and Development at the Faculty of Languages and Communication, Universiti Sultan Zainal Abidin, Malaysia. He obtained his Ph.D. in Education from the University of Nottingham in the United Kingdom. This book is an output of the Fundamental Research Grant awarded to him by the Malaysian Ministry of Higher Education to research the radicalisation of apostates on social networking sites. Radzuwan is also the author of Supportive Conversations on Facebook Timelines: Discourse Topic Management (Routledge). Azweed completed his bachelor’s degree in Civil Engineering at the University of Sheffield in the United Kingdom. He served as an engineer for five years in the oil and gas industry. Azweed then furthered his studies with a master’s degree in English Language Studies to develop his expertise in a new discipline. His master’s thesis was nominated for the best thesis award at the university. The apostate analysed in this book has a similar academic and professional background to Azweed which motivated him to assist in conducting this study.