The Open Catalogue is a freely accessible facility for easy access to detailed information on historical book resources, a finding guide to existing original documents as well as their digital copies.
Documents from the Digital Library can be used as an alternative to the study of microfilms in library reading rooms. The Digital Library contains documents from dozens of different sources and the advantages of the online environment are self-evident: digital documents are immediately accessible at any time from any source in the co-ordinated environment.
