The book is dedicated to a very difficult problem - providing psychological assistance to children with serious chronic diseases and their families. She talks about the deep psychological experiences of children caused by the disease, how age affects the perception of the disease and how the disease can affect the development of children, about the process of adaptation to a difficult life situation - the “work of grief” that the parents of a sick child experience. Its main goal is to help parents and all family members adapt to the situation of a child’s illness, teach them to support him during treatment, provide for his needs in the best possible way, without forgetting about themselves, and, if the loss of a child is inevitable, to find the strength to survive the grief and move on with your life. The book provides recommendations for specialists in organizing psychological support for families with sick children, parents, and doctors.