9/11 and the terrorism industry

9/11 has been the trigger for a decade‐long revival in research work on terrorism. The ten books under review illustrate the diversity of approaches to this growing field of study: the quality of the books does not, however, entirely refute the suggestion that there are diminishing returns to knowledge within the so‐called terrorism industry. What they all share, whether orthodox or critical, is a belief in the transformative significance of September 11: how we think about these attacks and the appropriate responses remains an area of significant disagreement.