Using the MOBIUS Catalog

If you want to find out what the Washington University Libraries have, please start your search with the WU Library Catalog.

If you do not find what you need in the WU Library Catalog, or want to see what other MOBIUS libraries have on your topic, click on the MOBIUS Union Catalog button at the top or bottom of most WU Library Catalog screens. Clicking on this button performs the last search you did in the WU Library Catalog in the MOBIUS Catalog. For more information on requesting books from the MOBIUS Catalog, please see the MOBIUS Union Catalog Information Sheet.

You may also search the MOBIUS Catalog directly, using the link below. However, you should use the WU Library Catalog to request items that are available at WU Libraries.

Search MOBIUS Catalog

What is Mobius?

MOBIUS is a consortium of academic libraries in the state of Missouri. It is also a union catalog of the holdings of member libraries. MOBIUS was created to allow faculty, students, and staff at member institutions to borrow library materials from other members.

Libraries participating in the MOBIUS catalog are organized in clusters representing geographic regions. There are 14 MOBIUS clusters: the Washington University cluster, consisting of the catalogs of all WU libraries except Medicine; the Merlin cluster, consisting of catalogs of the four University of Missouri campuses; and twelve more scattered across the rest of Missouri. See this cluster map for information as to what libraries are in each cluster.