The library is a research library for all fields of the German maritime history in its international involvements.
The inventory comprises about 90.000 titles. 370 periodicals are subscribed to and kept up-dated - important articles are indexed. There is an exchange of publications with more than 150 national and international institutions.
The library is a reference library, but it is connected to the German interlibrary loan - except for books released before the year 1800 as well as literature which deserves to be particularly protected.
Due to the special collecting field, subject indexing is not based on a standard classification system, but on a specific classification, accessible via the classified online-catalogue.