Art treasures and cultural assets require special care in order to preserve them as long as possible. The "preventive conservation" approach provides all the important information on this. But how do you put theory into practice? Sabine Maurischat gives a short and concise introduction to the different materials used in conservation and gives an impression of the materiality of cultural assets. In step-by-step instructions - practical and understandable - she explains how objects are handled, inventoried, packed and prepared for exhibitions. The aim is always a compromise between the two basic pillars of museum work: preservation and mediation.