Library circulation or library lending comprises the activities around the lending of library books and other material to users of a lending library.
Circulation desk at the University of Texas at Arlington's Central Library
A date due slip showing checkout and return activity from 1983 to 2002
Date due slip from Harvard's Lamont Library
Interlibrary loan is a service that enables patrons of one library to borrow materials that are held by another library.
Library circulation
…Controlled digital lending Interlibrary loan Library reference desk…
Picking up books requested through interlibrary loan