Handbook of Interpersonal Violence Across the Lifespan is an official publication of the National Partnership to End Interpersonal Violence Across the Lifespan (NPEIV). It is a comprehensive state-of-the-science reference work for researchers, practitioners, and policy makers. It is written from a trauma-informed perspective, and utilizes adverse childhood experiences research as its basic developmental framework along with the traumatic effects all forms of interpersonal violence tend to produce. With public health and social justice in mind, this human-rights based handbook also focuses on the overlap and continuum of the various types of interpersonal violence. It integrates all forms of interpersonal violence while dealing with key issues of intersectionality and systems responses. This two-volume handbook is published in collaboration with the National Partnership to End Interpersonal Violence Across the Lifespan, which aims to: Acknowledge and understand the impact interpersonal violence has on individuals and society Recognize the mental, physical, legal, social, and economic burden of interpersonal violence Respect an individual's basic right to live without violence; value human dignity Promote consensus-based practices while maintaining cultural sensitivity Consider and address the unique needs of vulnerable populations