Because we use the Library of Congress Classification System, call numbers begin with letters. There are signs on the shelves that indicate the call number range. Read the shelves from left to right. The lower level stacks include the call numbers S-Z and are located in the east wing.

"Sorting Room" refers to the area where recently used books and bound periodicals are kept until they can be re-shelved. This area is open to the public and includes both the open shelves, the shelves inside this room and any book trucks outside.  If the book you are looking for isn’t on the shelf, we recommend you look for it in the nearest sorting area.  There are similar sorting areas on other floors – some are open shelves and some are small rooms, so look for the "Sorting Room" signs.