All material is catalogued online. About half of the daily visitors are from the university. Others are visiting scholars. Security measures include secret alarm systems. Only designated staff are allowed in the locked rare book stacks.
Elevators require a key.
Bags, purses, coats and backpacks are stored in lockers outside the library. Bliss said that one of the most important aspects of his job is protecting the collections. Bancroft staff preserve rare collections with the help of the campus's renowned library conservation department. Refurbished books and other materials are stored in specially designed boxes constructed of acid-free paper, which serve as a protective barrier in case of fire or flooding. Copyright 1996, The Regents of the University of California.