This is not a book for those looking for an introduction to the subject matter. Dr. Widom has brought together a number of academics and researchers from the United States as well as the United Kingdom, all of whom have expertise in the results of exposure to various forms of traumatic experience, including disasters, combat, child abuse, and terrorism. The contributors’ expertise is reflected in the exploration of these complex issues from many points of view, beginning with discussion of the heterogeneous nature of what are here referred to as posttraumatic syndromes and then exploring the biological and genetic factors in understanding the connections between trauma, violence, and psychopathology. One chapter is devoted to a review of epigenetic pathways and another to teasing out the role of genotype in helping to understand the development of problems for maltreated children. Several chapters describe the various ways in which childhood trauma, particularly exposure to family violence, as well as to disaster, war, and terrorism, increase an individual’s risk for a wide variety of psychopathological outcomes, including antisocial personality disorder. Another chapter looks at psychopathology and trauma exposure among recent combat veterans. Expanding beyond the immediate interpersonal context, several chapters look at the community and cultural context, with a particular emphasis on the sense of community after disaster as well as general health risks to children after exposure to family violence.