Students and staff of the University of Missouri-St. Louis can checkout books from ANY UM-System library as well as libraries at St. Louis University, Washington University, St. Louis Community College and more. One can go to these libraries for books or use the MOBIUS Union Catalog as an easy and fast way to send them to UMSL.

MOBIUS (MissOuri Bibliographic Information User System) is made up of many academic libraries joined in clusters with names like MERLIN, SWAN, Arthur and Archway.