An online public access catalog (often abbreviated as OPAC or simply library catalog) is an online database of materials held by a library or group of libraries. Users search a library catalog principally to locate books and other material available at a library. In simple language it is an electronic version of the card catalog. OPAC is the gateway to library's collection.

What does the online catalogue contain?

What is the purpose of the online catalogue?

The online catalogue (OPAC) can be used to search the holdings of the library and to request or reserve books.

What is in the OPAC?

Monographs 1501 ff.

part of the incunabula collection (all the incunabula are searchable via INKA, which contains all incunabula held in German libraries)

Journals

Articles from journals and essay collections concerning the early modern period (data from 2008 onwards)