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Library Building & Amenities Guide

Where to find things in the UMSL University Libraries (Thomas Jefferson, St. Louis Mercantile, and State Historical Society)

Service Desk

At the Service desk (located just inside the quad entrance) you can:

  • Check out, renew, and return books (including Reserve, UMSL, UM System, MOBIUS, and Interlibrary Loan items) and study room keys
  • Pick up books you’ve requested
  • Get Reference (research) help to find books, articles, and other materials
  • Obtain assistance with microform materials
  • Inquire about directions and other information

St. Louis Mercantile Library & State Historical Society

The Mercantile Library is located primarily on Level 2, with exhibit space on Levels 1, 2, and 3. The State Historical Society is located on Level 2, just outside the elevators.