Many institutions make a distinction between a "circulation" or "lending library", (usually a public library where materials are expected and intended to be loaned to patrons, institutions, or other libraries) and a "research" or "reference library" (where the materials are selected on a basis of their natures or subject matter, and are usually not lent out). Modern libraries are often a mixture of both, as they contain a general collection for circulation, and a reference collection which is often more specialized, as well as restricted to the library premises.
National libraries
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| National Library of Wales |
A national or state library serves as a national repository of information, and has the right of legal deposit, which is a legal requirement that publishers in the country need to deposit a copy of each publication with the library. Unlike a public library, they rarely allow citizens to borrow books. Often, they include numerous rare, valuable, or significant works. There are wider definitions of a national library, putting less emphasis to the repository character. Many national libraries cooperate within the National Libraries Section of the International Federation of Library Associations and Institutions (IFLA) to discuss their common tasks, define and promote common standards and carry out projects helping them to fulfil their duties. National libraries of Europe participate in The European Library. This is a service of The Conference of European National Librarians (CENL). The first national libraries had their origins in the royal collections of the sovereign or some other supreme body of the state.
Research libraries
A research library contains an in-depth collection of material on one or more subjects. A research library supports scholarly research and will generally include primary as well as secondary sources; it will maintain permanent collections and attempt to provide access to all necessary material. A research library is most often an academic or national library, but a large special library may have a research library within its special field and a very few of the largest public libraries also serve as research libraries. A large university library may be considered a research library; and in North America they may belong to the Association of Research Libraries.
A research library can be either a reference library, which does not lend its holdings, or a lending library, which does lend all or some of its holdings. Some extremely large or traditional research libraries are entirely reference in this sense, lending none of their material; most academic research libraries, at least in the U.S., now lend books, but not periodicals or other material.
Reference libraries
A reference library does not lend books and other items; instead, they must be read at the library itself. Typically such libraries are used for research purposes, for example at a university. Some items at reference libraries may be historical and even unique. Examples of reference libraries include the British Library in London and the Bodleian Library at Oxford University. Many libraries contain a "reference section", which holds books, such as dictionaries, which are common reference books, and are therefore not lent out Such references sections may be referred to as "reading rooms", which may also include newspapers and periodicals.
Public lending libraries
A public or public lending library provides a service to the general public and makes at least some of its books available for borrowing, so that readers may use them at home over a period of days or weeks. Typically, libraries issue library cards to community members wishing to borrow books. Many public libraries also serve as community organizations that provide free services and events to the public, such as reading groups and toddler story time.
The earliest example in England of a library to be endowed for the benefit of users who were not members of an institution such as a cathedral or college was the Francis Trigge Chained Library in Grantham, Lincolnshire, established in 1598. The library still exists and can justifiably claim to be the forerunner of later public library systems. The beginning of the modern, free, open access libraries really got its start in the U.K. in 1847. Parliament appointed a committee, led by William Ewart, on Public Libraries to consider the necessity of establishing libraries through the nation: In 1849 their report noted the poor condition of library service, it recommended the establishment of free public libraries all over the country, and it led to the Public Libraries Act in 1850, which allowed all cities with populations exceeding 10,000 to levy taxes for the support of public libraries. Another important act was the 1870 Public School Law, which increased literacy, thereby the demand for libraries, so by 1877, more than 75 cities had established free libraries, and by 1900 the number had reached 300. This finally marks the start of the public library as we know it. And these acts led to similar laws in other countries, most notably the U.S.
1876 is a well known year in the history of librarianship in the United States. The American Library Association was formed, as well as The American Library Journal, Melvil Dewey published his decimal based system of classification, and the United States Bureau of Education published its report, "Public libraries in the United States of America; their history, condition, and management." During the post-Civil War years, there was a rise in the establishment of public libraries, a movement led chiefly by newly formed women's clubs. They contributed their own collections of books, conducted lengthy fund raising campaigns for buildings, and lobbied within their communities for financial support for libraries, as well as with legislatures and the Carnegie Library Endowment founded in the 20th century. They led the establishment of 75–80 percent of the libraries in communities across the country.
In 1979 and 1991 White House Conferences on Library and Information Services were held to demonstrate the key role libraries play in American Democracy.
The American Library Association (ALA) continues to play a major role in libraries to this day, with its public library focused division, the Public Library Association, establishing standards and planning guidelines. Dewey's classification system, although under heavy criticism of late, still remains the prevailing method of classification used in the United States.
As the number of books in libraries increased, so did the need for compact storage and access with adequate lighting, giving birth to the stack system, which involved keeping a library's collection of books in a space separate from the reading room. This arrangement arose in the 19th century. Book stacks quickly evolved into a fairly standard form in which the cast iron andsteel frameworks supporting the bookshelves also supported the floors, which often were built of translucent blocks to permit the passage of light (but were not transparent, for reasons of modesty). The introduction of electrical lighting had a huge impact on how the library operated. The use of glass floors was largely discontinued, though floors were still often composed of metal grating to allow air to circulate in multi-story stacks. As more space was needed, a method of moving shelves on tracks (compact shelving) was introduced to cut down on otherwise wasted aisle space.
Library 2.0, a term coined in 2005, is the library's response to the challenge of Google and an attempt to meet the changing needs of users by using web 2.0 technology. Some of the aspects of Library 2.0 include, commenting, tagging, bookmarking, discussions, use of online social networks by libraries, plug-ins, and widgets. Inspired by web 2.0, it is an attempt to make the library a more user-driven institution.
Despite the importance of public libraries, they are routinely having their budgets cut by state legislature. Funding has dwindled so badly that some smaller public libraries have been forced to cut their hours and release employees.
Academic libraries
An academic library is generally located on the campuses of colleges and universities and serve primarily the students and faculty of that and other academic institutions. Some academic libraries, especially those at public institutions, are accessible to members of the general public in whole or in part.
Academic libraries are libraries that are hosted in post-secondary educational institutions, such as colleges and universities. The main functions of an academic library are to provide resources and research support for students and faculty of the educational institution. Specific course-related resources are usually provided by the library, such as copies of textbooks and article readings held on 'reserve' (meaning that they are loaned out only on a short-term basis, usually a matter of hours).
Academic libraries offer workshops and courses outside of formal, graded coursework, which are meant to provide students with the tools necessary to succeed in their programs. These workshops may include help with citations, effective search techniques, journal databases, and electronic citation software. These workshops provide students with skills that can help them achieve success in their academic careers (and often, in their future occupations), which they may not learn inside the classroom.
The academic library provides a quiet study space for students on campus; it may also provide group study space, such as meeting rooms. In North America, Europe, and other parts of the world, academic libraries are becoming increasingly digitally oriented. The library provides a "gateway" for students and researchers to access various resources, both print/physical and digital. Academic institutions are subscribing to electronic journals databases, providing research and scholarly writing software, and usually provide computer workstations or computer labs for students to access journals, library search databases and portals, institutional electronic resources, internet access, and course- or task-related software (i.e. word processing and spreadsheet software). They are increasingly acting as an electronic repository for institutional scholarly research and academic knowledge, such as the collection and curation of digital copies of students' theses and dissertations.
Children's libraries
Children's libraries are special collections of books intended for juvenile readers and usually kept in separate rooms of general public libraries. They are an educational agency seeking to acquaint the young with the world's literature and to cultivate a love for reading. Their work supplements that of the public schools.
Services commonly provided by public libraries may include storytelling sessions for infants, toddlers, preschool children, or after-school programs, all with an intention of developing early literacy skills and a love of books. One of the most popular programs offered in public libraries are summer reading programs for children, families, and adults.
Special libraries
All other libraries fall into the "special library" category. Many private businesses and public organizations, including hospitals, museums, research laboratories, law firms, and many government departments and agencies, maintain their own libraries for the use of their employees in doing specialized research related to their work. Special libraries may or may not be accessible to some identified part of the general public. Branches of a large academic or research libraries dealing with particular subjects are also usually called "special libraries": they are generally associated with one or more academic departments. Special libraries are distinguished from special collections, which are branches or parts of a library intended for rare books, manuscripts, and other special materials.
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