When you find an item of in the VCU Libraries catalog, you will notice in the record that there is a Location/Call Number field. The location codes will tell you where the item is located within Cabell Library on the Monroe Park Campus or Tompkins-McCaw Library on the medical campus. Common location codes for Cabell Library are covered in this podcast.
Understanding Location Codes: Download MP3 file
Update: As mentioned in the podcast, you can request items from Compact Storage by filling out the item request form (under the Forms tab on the main library Web page). You can now also request items from compact shelving by filling out a form available at the circulation desk.