Librarian is a person who manages and organizes books and information in a library. Librarians help people find books, use resources, and access information. They take care of collections that may include books, digital media, and other materials. Libraries can be in schools, public buildings, or universities.

Librarians work in communities around the world and support learning and research. Libraries have existed since ancient times, such as early collections of written texts. Today, librarians help people use both physical and digital resources. Their work is part of education and information sharing.