There are 18 libraries and several other distinct collections at Stanford. Many departments each have a primary library with resources most specific to that department's discipline. Most humanities and social science departments primarily use Green, the largest library on campus.
See also the list of libraries and collections.
Access to library resourcesEdit
A Stanford ID is required to enter most libraries and to check out books. There are also ways of getting into libraries with temporary cards. Green library allows students to forget their IDs only once per quarter.