Man has been witnessing and being exposed to extraordinary events called traumatic experiences, from natural disasters to wars, from violence to accidents, many disasters and crises since his existence. However, it has been observed that there has been a rapid increase in extraordinary events in recent years. For example, when we look at some of the events that 15-year-old children are exposed to and witnessed in our country today, terrorist attacks, school bus accidents, plane, helicopter and train accidents, wars, earthquakes, floods, fires, avalanche disasters, increasing domestic violence and abuse cases, economic crises and pandemic comes to the fore. Considering all these experiences, it is seen that there are extremely challenging life events that threaten the mental health of children and adolescents. One of the most important duties of field experts is to help protect children's mental health and to provide psychosocial support in extraordinary situations. In this book, extraordinary situations have been defined, tried to be explained by considering them one by one, and examples of activities to be used in extraordinary events and employees in extraordinary situations are given. I hope that the book will be useful to all field experts, especially children and adolescents, and to those who are interested in these subjects.