Olivier Roy

‘In Search of the Lost Orient: An Interview’ by Olivier Roy, as interviewed by Jean-Louis Schlegel, translated by C. Jon Delogu (Columbia University Press, $35, 272 pages)

'Jihad and Death: The Global Appeal of Islamic State' by Olivier Roy, translated by Cynthia Schoch (Hurst, 130 pages, £16)

After every jihadi attack in the West, fevered media debate centers on familiar questions. Who are these people? What is their relation to ISIS? How to stop them? Why do "they" hate "us"?