The simulation technology in preventive fire protection has gained more and more users in recent years. This is due to the fact that computer simulations are becoming increasingly accurate and powerful. However, assessing the quality and testing these simulation results is not easy for the untrained professional. Often, there is a lack of fundamental knowledge to enhance understanding. The series "Practical Knowledge in Fire Protection" imparts practical expertise and thus facilitates the entry into challenging fire protection topics. This specialized book is primarily aimed at fire protection experts and planners, as well as civil engineers, architects, and representatives from authorities who cannot yet confidently assess the field of simulation based on their own experience. The book provides a practical guide for everyday work to effectively collaborate with simulation experts.