The comprehensive compendium on questions of archival theory and practice is tailored to the specific professional profile of the specialist in media and information services (FaMI) in the field of archives. The guide is based on the experiences of the LWL Archive Office for Westphalia in municipal archival care and is intended as a resource for the training and later work of the specialists. At the same time, it offers historians and aspiring archivists a proven introduction to the field of archiving: archival activities ranging from document management and the creation of records to new information technologies, data protection, and public relations are presented in detail, along with auxiliary sciences. The conclusion includes sample templates, legal texts, and references to helpful addresses and further literature.