Understanding and Treating Incels is an indispensable guide for mental health clinical staff, social workers, prevention specialists, educators, and threat assessment professionals who want to better understand the involuntary celibate movement, assess individuals’ potential for violence, and offer treatment approaches and prevention efforts. Chapters explore the movement in terms of gender, technology, the media, and pornography usage. The book discusses how the incel mentality has motivated individuals to misogynistic worldviews and increased rage and disillusionment, and inspired acts of targeted violence such as school shootings and mass casualty events. Later chapters walk the reader through three cases studies and offer treatment considerations to assist mental health professionals and those developing education and prevention-based programming. The complete text gives the reader useful perspectives and insights into incel culture while offering mental health clinicians and educators guidance on treatment and prevention efforts.