The Circulation Section houses the main library stacks. It includes the general reading room, the Reserve Section, the Computer Science Library, and the Office of the Assistant Director for Libraries. The Reserve Section makes available to students copies of approved textbooks and other books reserved by the faculty as basic readings for specific courses.

The Computer Science Library allows students access to the growing collection of computer science materials, at the same time allowing them to charge out materials for home use. Seating capacity on this floor is 331.