Filing systems are all products that serve to file, organise and sort documents in the office. These can be letter trays for filing or pre-sorting mail, suspension file systems for organising and archiving documents, magazine racks for collecting and folder, loose sheets or lever arch files. What all systems have in common is that they serve to keep work materials in order and accessible. Which filing systems are the right ones depends both on the space in the office and on the way in which documents and papers are worked on. Does everything have to be accessible quickly and at short notice in a letter tray, or is it more a matter of archiving, where quick and frequent access no longer plays a role? Should documents be open and accessible, or does it make sense to sort them into drawer boxes before permanently archiving them in suspension files? These examples show that filing systems should always be selected according to individual needs and purposes.