The book is divided into five parts. The first, with four chapters, includes an introduction to suicidology and discussions of theory, methods of study, and history. Part 2 addresses issues of age, sex, gender, race, work, marital status, family, social relations, suicide attempts, and methods of suicide. The third part includes chapters on mental disorders, physical illness, alcoholism, substance abuse, biological factors, and aggression and violence. The chapters in part 4 examine indirect self-destructive behavior and ethical, religious, philosophical, and legal aspects of suicide. The book concludes with discussions of treatment, prevention, "postvention"—that is, prevention of additional suicides in a vulnerable population—and survivor issues.