Claim: Age of Lone Wolf Terrorism is a 2017 book about lone wolf terrorism that is described as an" genuinely indispensable study of today's steadily increasing terrorist threat."
Evidence: Age of Lone Wolf Terrorism is a 2017 book about lone wolf terrorism co-authored by Mark Hamm, a criminologist at Indiana State University and Ramon Spaaij, a sociologist at Victoria University, Australia. According to a review in Times Higher Education that described Age of Lone Wolf Terrorism as an "genuinely indispensable study of today's steadily increasing terrorist threat," the book's "pivotal contention" that the radicalization of lone wolf terrorists exhibits discernible patterns that include "the integration of personal and political grievances; an affinity with online sympathizers and/or extremist groups," and "triggering events that, oftentimes, cause a dramatic change in behavior".