You can search the standard bibliographic database of the Arabic Union Catalog and the content of the Arabic union digital library...

Search German and other European libraries. May include some institutions not found in WorldCat. Der Karlsruher Virtuelle Katalog ist ein Dienst der KIT-Bibliothek zum Nachweis von mehr als 500 Millionen Büchern und Zeitschriften in Bibliotheks- und Buchhandelskatalogen weltweit

Find what you want in a library near you with WorldCat, a global catalog of library collections. If you find what you are looking for at a library outside of your own, talk to your librarian about how to obtain the item. Options such as InterLibrary Loan (ILL) may be available.

The Rijksmuseum and other participants in artlibraries.net sought a more advanced and future-looking system to give single-search access to the world’s most important art library catalogs. The Future of Art Bibliography group established the Art Discovery Group Catalogue on WorldCat because of its ability to pull results from participating libraries as well as other freely available databases faster than any other system.