A union catalog is a combined library catalog describing the collections of a number of libraries. Union catalogs have been created in a range of media, including book format, microform, cards and more recently, networked electronic databases. Print union catalogs are typically arranged by title, author or subject (often employing a controlled vocabulary); electronic versions typically support keyword and Boolean queries. Union catalogs are useful to librarians, as they assist in locating and requesting materials from other libraries through interlibrary loan service. They also allow researchers to search through collections to which they would not otherwise have access, such as manuscript collections.
The largest union catalog ever printed is the American National Union Catalog Pre-1956 Imprints (NUC), completed in 1981. [1] This achievement has since been superseded by the creation of union catalogs in the form of electronic databases, of which the largest is OCLC's WorldCat. [2] Other examples include K10plus in Germany, Library Hub Discover (formerly COPAC) provided by Research Libraries UK and AMICUS, provided by Library and Archives Canada. [3]
For academic publications, several academic search engines exist to combine the open data provided by open archives through OAI-PMH, as well as records from publishers deposited in CrossRef and other sources. They include BASE, CORE and Unpaywall, which indexes over 20 million open access publications as of 2020. [4]
This page is a glossary of library and information science.
An academic journal or scholarly journal is a periodical publication in which scholarship relating to a particular academic discipline is published. They serve as permanent and transparent forums for the presentation, scrutiny, and discussion of research. They nearly universally require peer review for research articles or other scrutiny from contemporaries competent and established in their respective fields.
The online public access catalog (OPAC), now frequently synonymous with library catalog, is an online database of materials held by a library or group of libraries. Online catalogs have largely replaced the analog card catalogs previously used in libraries.
OCLC, Inc., doing business as OCLC, is an American nonprofit cooperative organization "that provides shared technology services, original research, and community programs for its membership and the library community at large". It was founded in 1967 as the Ohio College Library Center, then became the Online Computer Library Center as it expanded. In 2017, the name was formally changed to OCLC, Inc. OCLC and thousands of its member libraries cooperatively produce and maintain WorldCat, the largest online public access catalog in the world. OCLC is funded mainly by the fees that libraries pay for the many different services it offers. OCLC also maintains the Dewey Decimal Classification system.
Landsbókasafn Íslands – Háskólabókasafn is the national library of Iceland which also functions as the university library of the University of Iceland. The library was established on December 1, 1994, in Reykjavík, Iceland, with the merger of the former national library, Landsbókasafn Íslands, and the university library. It is the largest library in Iceland with about one million items in various collections. The library's largest collection is the national collection containing almost all written works published in Iceland and items related to Iceland published elsewhere. The library is the main legal deposit library in Iceland. The library also has a large manuscript collection with mostly early modern and modern manuscripts, and a collection of published Icelandic music and other audio. The library houses the largest academic collection in Iceland, most of which can be borrowed for off-site use by holders of library cards. University students get library cards for free, but anyone can acquire a card for a small fee. The library is open for public access.
WorldCat is a union catalog that itemizes the collections of tens of thousands of institutions, in many countries, that are current or past members of the OCLC global cooperative. It is operated by OCLC, Inc. Many of the OCLC member libraries collectively maintain WorldCat's database, the world's largest bibliographic database. The database includes other information sources in addition to member library collections. OCLC makes WorldCat itself available free to libraries, but the catalog is the foundation for other subscription OCLC services. WorldCat is used by librarians for cataloging and research and by the general public.
EBSCO Information Services, headquartered in Ipswich, Massachusetts, is a division of EBSCO Industries Inc., a private company headquartered in Birmingham, Alabama. EBSCO provides products and services to libraries of many types around the world. Its products include EBSCONET, a complete e-resource management system, and EBSCOhost, which supplies a fee-based online research service with 375 full-text databases, a collection of 600,000-plus ebooks, subject indexes, point-of-care medical references, and an array of historical digital archives. In 2010, EBSCO introduced its EBSCO Discovery Service (EDS) to institutions, which allows searches of a portfolio of journals and magazines.
The University of California operates the largest academic library system in the world. It manages more than 40.8 million print volumes in 100 libraries on ten campuses. The purpose of these libraries is to assist research and instruction on the University of California campuses. While each campus library is separate, they share facilities for storage, computerized indexing, digital libraries and management.
The following outline is provided as an overview of and topical guide to library and information science:
Grey literature is materials and research produced by organizations outside of the traditional commercial or academic publishing and distribution channels. Common grey literature publication types include reports, working papers, government documents, white papers and evaluations. Organizations that produce grey literature include government departments and agencies, civil society or non-governmental organizations, academic centres and departments, and private companies and consultants.
OAIster is an online combined bibliographic catalogue of open access material aggregated using OAI-PMH.
The National Union Catalog (NUC) is a printed catalog of books catalogued by the Library of Congress and other American and Canadian libraries, issued beginning in the 1950s. The National Union Catalog is divided into two series: the Pre-1956 Imprints is a 754-volume set containing all older records in a consolidated alphabetical format, while post-1955 volumes continue to be published serially. Since 1983, the NUC has been issued on microfiche. It is not related to the National Union Catalog of Manuscript Collections (NUCMC).
A bibliographic database is a database of bibliographic records. This is an organised online collection of references to published written works like journal and newspaper articles, conference proceedings, reports, government and legal publications, patents and books. In contrast to library catalogue entries, a majority of the records in bibliographic databases describe articles and conference papers rather than complete monographs, and they generally contain very rich subject descriptions in the form of keywords, subject classification terms, or abstracts.
Frederick Gridley Kilgour was an American librarian and educator known as the founding director of OCLC, an international computer library network and database. He was its president and executive director from 1967 to 1980.
The Texas A&M University Libraries support the teaching, research, and outreach missions of Texas A&M University through leadership in acquiring, managing, and delivering information in an environment that fosters learning and inquiry. In particular, Texas A&M is nationally and internationally recognized for many research collections, including:
Michigan State University Libraries is the academic library system of Michigan State University in East Lansing, Michigan, United States. The library system comprises nine branch locations including the Main Library. As of 2021-22, the MSU Libraries ranked 26th among U.S. and Canadian research libraries by number of volumes and 7th among U.S. and Canadian research libraries by number of titles held.
The Center for Research Libraries is a consortium of North American universities, colleges, and independent research libraries, based on a buy-in concept for membership of the consortia. The consortium acquires and preserves traditional and digital resources for research and teaching and makes them available to member institutions through interlibrary loan and electronic delivery. It also gathers and analyzes data pertaining to the preservation of physical and digital resources, and fosters the sharing of expertise, in order to assist member libraries in maintaining their collections.
A digital library is an online database of digital objects that can include text, still images, audio, video, digital documents, or other digital media formats or a library accessible through the internet. Objects can consist of digitized content like print or photographs, as well as originally produced digital content like word processor files or social media posts. In addition to storing content, digital libraries provide means for organizing, searching, and retrieving the content contained in the collection. Digital libraries can vary immensely in size and scope, and can be maintained by individuals or organizations. The digital content may be stored locally, or accessed remotely via computer networks. These information retrieval systems are able to exchange information with each other through interoperability and sustainability.
NUCMC is the abbreviation for the National Union Catalog of Manuscript Collections. It is a national-level program based at the Library of Congress that seeks to promote free access to the documentary heritage of the United States. It does this by providing cataloging for archives and historical societies around the country that do not have access to national online databases. The program started in 1959 and published bound volumes of cataloging records from 1962 to 1993. One famed editor was Arline Custer, Head of the Manuscript Section, Descriptive Cataloging Division of the Library of Congress. As of 1986, the cataloging records were input into RLIN, the Research Libraries Information Network, an international online database. As of September 2007, all cataloging records in RLIN have been migrated into the OCLC database (WorldCat), since RLIN was merged into OCLC. All cataloging since that time has been input into OCLC. It is not related to the NUC Pre-1956 volumes.
OurResearch, formerly known as ImpactStory, is a nonprofit organization that creates and distributes tools and services for libraries, institutions and researchers. The organization follows open practices with their data, code, and governance. OurResearch is funded by the Alfred P. Sloan Foundation, the National Science Foundation, and Arcadia Fund.