Nelly Lahoud’s much-awaited new book, the Jihadis’ Path to Self-Destruction, is out. Lahoud, who recently joined West Point’s Combating Terrorism Center as an associate professor, is one of the finest scholars of jihadi ideology around. Her book is a brilliant dissection of contemporary jihadi discourse with an original twist, namely an in-depth comparison of modern jihadism with early Kharijism. She argues convincingly that the takfiri reflexes of contemporary militants will lead to their internal fragmentation and political marginalisation, just as it did with the Kharijites. A very impressive work.