response to community needs. Libraries bridge traditional divisions between technical and public services positions by adopting new technologies such as mobile library services and reconfigure organizations depending on the local situation. Academic library An academic library is a library that is an integral part of a college, university, or other institution of postsecondary education, administered to meet the information and research needs of its students, faculty, and staff. In the United States, the professional association for academic libraries and librarians is the Association of College and Research Libraries. Depending upon the institution, the library may serve a particular faculty or the entire institution. Many different types, sizes, and collections are found in academic libraries and some academic librarians are specialists in these collections and archives. A university librarian, or chief librarian, is responsible for the library within the college structure, and may also be called the Dean of Libraries or Director of Libraries. Some post-secondary institutions treat librarians as faculty, and they may be called professor or other academic ranks, which may or may not increase their salary and benefits. Some universities make similar demands of academic librarians for research and professional service as are required of faculty. Academic librarians administer various levels of service and privilege to faculty, students, alumni, and the public. School library A school library exclusively serves the needs of a public or private school. The primary purpose is to support the students, teachers, and curriculum of the school or school district. In addition to library administration, certificated teacher-librarians instruct individual students, groups and classes, and faculty in effective research methods, often referred to as information literacy skills. Audio-visual equipment service and/or textbook circulation may also be included in a school librarian's responsibilities. Often, teacher-librarians are qualified teachers who take academic courses for school library certification or earn a master's degree in Library Science. Special library Special libraries are libraries designed to perform some specific function for a particular set of people or an organization, i.e. news, law, medical, theological, prison, corporate, or museum. They can be highly specialized, serving a discrete user group with a restricted collection area. In an increasingly global and virtual workplace, many special librarians may not even work in a library at all but instead manage and facilitate the use of electronic collections. Funding for special libraries varies widely. Librarians in some types of special libraries may be required to have