The examples and perspective in this article deal primarily with the United States and do not represent a worldwide view of the subject. (July 2018) (Learn how and when to remove this template message)
A teacher-librarian (TL), school librarian, or school library media specialist (SLMS), is a certified librarian who also has training in teaching. According to the American Association of School Librarians (AASL), a division of the American Library Association (ALA), the official title for a certified librarian who works in a school in the United States is school librarian.
The roles of the school librarian
The school librarian performs four main leadership roles: teacher, instructional partner, information specialist, and program administrator.
School librarians may read to children, assist them in selecting books, and assist with schoolwork. Some school librarians see classes on a "flexible schedule". A flexible schedule means that rather than having students come to the library for instruction at a fixed time every week, the classroom teacher schedules library time when the expertise of the school librarian, library and information skills, or materials are needed as part of a learning experience.
In the instructional partner role, school librarians collaborate with classroom teachers to create independent learners by fostering students' research, information literacy, technology, communication, and critical thinking skills. School librarians play a major role in infusing Information Literacy concepts and skills into secondary school curricula as well as enhances implementation of Information Literacy knowledge practices and dispositions into the secondary school education system. 
As information specialists, school librarians develop a resource base for the school by using the curriculum and student interests to identify and obtain library materials, organize and maintain the library collection in order to promote independent reading and lifelong learning. Materials in the library collection can be located using an Online Public Access Catalog (OPAC)
This role also encompasses many activities relating to technology including the integration of resources in a variety of formats: periodical databases; Web sites; digital video segments; podcasts; blog and wiki content; digital images; virtual classrooms, etc. School librarians are often responsible for audio-visual equipment and are sometimes in charge of school computers and computer networks.
As program administrators, school librarians define, lead, and manage school library media programs by establishing library policies; overseeing the library budget; planning the physical and virtual library space; and maintaining a welcoming, positive, and innovative learning atmosphere. Librarians also maintain the collection by adding items to enhance curriculum and entice readers in order to have a good relationships with the patrons, both teachers and students. Many times, librarians are also responsible for repairing damaged books and periodicals .
In the United States, a teacher-librarian must have a baccalaureate degree and a certificate in secondary or elementary education, and must also complete a school library media program and gain a state certification. Programs in library science vary between institutions; however, state requirements must be met before a library media specialist is allowed to teach. Some school library media specialists hold the full Master of Library Science (MLS) or Master of Library and Information Science (MLIS) degree, while others do not. In many instances, school librarians who have an MLS degree but do not have the requisite teaching credentials must obtain these teaching credentials and classroom teaching experience first before they are permitted to work as teacher-librarians. Often additional library science graduate coursework is required, focused specifically on issues pertaining to school librarianship.
Teacher-librarians rely on the support of local, state, national, and international professional organizations for career and professional development, employment opportunities, and awards/grants/funding. Groups like the International Association of School Librarianship; the American Association of School Librarians; the School Library Association in the United Kingdom and the Australian School Library Association host websites, publish journals, and sponsor conferences, workshops, and other events which showcase current research and practices in the field.
In the United States, teacher-librarians are also supported by state organizations which advocate for teachers at the district and school level. A comprehensive list is available from the ALA.
- Grigas, Vincas; Mierzecka, Anna; Fedosejevaitė, Roma. (2018). School Librarians’ Attitudes Towards Teaching Information Literacy. In: Kurbanoğlu S., Boustany J., Špiranec S., Grassian E., Mizrachi D., Roy L. (eds). Information Literacy in the Workplace. ECIL 2017. Communications in Computer and Information Science, 810, 703-712. Springer, Cham.
- International Association of School Librarianship
- Australian School Library Association
- American Association for School Librarians (2008). AASL Affiliate Assembly Regions. Retrieved December 6, 2008.[permanent dead link]
- "School Library Legislation", American Library Association, September 11, 2015. http://www.ala.org/advocacy/advleg/federallegislation/schoollibraries/leg (Accessed April 2, 2018) Document ID: 8349bb8c-1b2f-e474-3dc0-2e6b0a82053f