The book offers a detailed study of bullying as a complex system in which the aggressor, the victim, the observers, and the rescuer interact. It not only helps cope with the consequences, but also explains the mechanisms of harassment—making it possible to prevent it in advance. German Teplyakov, a specialist in behavioral biology and personnel security, devoted significant time to studying bullying. With his help, readers can understand the causes and forms of bullying, and learn how to protect themselves and seek support. Drawing on scientific data and experience, the author reveals the reasons for aggression, types of bullying—from school bullying to cyberbullying—and emphasizes the importance of active involvement by the surrounding environment in solving the problem. The book doesn’t offer easy solutions, but it provides useful tools for changing the situation.