A drop safe that accepts books returned to a library

a number on the spine of a library book indicating the book's location in the library

the place at any library where you can check out and return books, pay fines, pick up your holds, and more

a person, typically with a degree in library science, who administers or assists in a library

a listing of all the items within a library online or in the library

a desired reward for going above and beyond the assigned task

Assistants who help librarians with all aspects of running a library

series of numbers, typically four or six digits, that is required by applications, networks, or devices for access and authorization

 a specific amount or number of things that is expected to be achieved