These catalogs are the central catalogs for the Columbia University Libraries. They indicate the location of most materials cataloged before 1986 in departmental libraries as well as in the stacks. There are eight CLIO Plus terminals for public use in the reference area, and an additional 12 CLIO terminals opposite the Butler Circulation Desk. It includes some journals of a more general and popular nature as well. Issues are arranged alphabetically by title on shelves in the Reading Room.
Periodicals are for room use only, and a photocopier is available.
The Microfrom Reading Room supports the collections of the Humanities and History Division, and houses approximately half of the libraries' microform collection. MRR maintains a current collection of newspapers, academic journals, popular magazines, doctoral dissertations, masters' essays, indexes, bibliographies, government publications, monographs and monographic series. The microform collection does not circulate but material may be photocopied on the reader printers.