A comprehensive alarm and emergency planning system is essential for hospitals to ensure they are not caught unprepared by major incidents or disasters. This work explains the fundamentals of hospital alarm and emergency planning (HAEP). Additionally, the reader receives valuable assistance in the practical implementation and execution of a comprehensive hospital alarm and emergency plan. This enables them to prepare their hospital for emergencies, conduct employee training and drills, and continuously update the plans. An important chapter addresses risk and crisis communication in hospitals. At the end of the book, the discussion of specific pitfalls and problem situations rounds off the topic.