This is an open access title available under the terms of a CC BY-NC-ND 4.0 International licence. It is free to read on the Oxford Academic platform and offered as a free PDF download from OUP and selected open access locations. This collection is the first on ex-extremists and combatants (Formers) in violence prevention work. While the engagement of Formers in violence prevention programs--especially in the context of countering and preventing...