ISKO Encyclopedia of Knowledge Organization (IEKO)       [about]

editor-in-chief: Birger Hjørland (University of Copenhagen, Denmark)
co-editor and web editor: Claudio Gnoli (University of Pavia, Italy)
authors and editors

alphabetical index; chronological index

Knowledge organization: general and historical issues

  • Discipline and adjacent disciplines: Knowledge organization (KO); Library and information science (LIS); Metaphysics and ontology
  • Movements and bodies: ISKO; Documentation and KO (francophone tradition); Documentation and KO (German tradition)
  • Biographical articles (non-living persons only): Conrad Gesner; Carl Linnaeus; Paul Otlet; Henry E. Bliss; S.R. Ranganathan; A. Neelameghan; Ingetraut Dahlberg

Core concepts in KO

Knowledge organizing systems (KOS)

Knowledge organizing processes (KOP)

Methods, approaches & philosophies

KO in different contexts and applications

  • Library classification; OPAC; Web archiving

Alphabetical list of available entries

Automatic subject indexing of text
BISAC Subject Headings List
Chinese Library Classification (CLC)
Colon Classification (CC)
Diagnostic and Statistical Manual of Mental Disorders (DSM)
Document theory
Domain analysis
IFLA Library Reference Model (LRM)
Integrative levels
Knowledge organization (KO)
Knowledge organization system (KOS)
Library and information science (LIS)
Library-Bibliographical Classification (LBC, Russia)
Literary warrant
Logical division
Mathematical theory of classification 
Reader-interest classifications
Subject (of documents)
Thesaurus (for information retrieval)

New entries are usually listed in ISKO homepage.

This is an online, open access encyclopedia of knowledge organization hosted by ISKO and produced by ISKO Scientific Advisory Council. It will contain entries about concepts, disciplines, organizations, systems, standards, and theories etc. including important domain specific systems.

The encyclopedia is peer reviewed, all articles are signed by author(s), dated and versioned (new versions may be distinguished as, for example, Version 1.1 for minor changes of version 1 and Version 2 for major changes). We try to get articles by the best experts in the subject of each article and to maintain a high scholarly standard. The first accepted version of each article is also published in a section of Knowledge Organization: Reviews of concepts in knowledge organization. A version is also archived in WebCite.

The order in which the articles are published represents the availability and deadlines of authors rather than a priority of what is most important. The plan is that the encyclopedia shall span the field of Knowledge Organization from classical concepts and systems to up-to-date advanced technologies, concepts and issues. For entries listed in dark grey, authors have been assigned. Anybody is encouraged to submit proposals for entries or updated versions of existing entries to scient@isko.org. Please conform to the guidelines for contributors. The policy for selecting authors is primarily based on research profiles: to try to get the most qualified authors for each article (i.e. authors that have previously published on the subject).

The Encyclopedia is introduced by Stella Dextre Clarke, 2017, “Babel, babble and info-speak: could an encyclopedia help?”, Catalogue and index 188: 59-60; Claudio Gnoli offered a demonstration (audio recording available) of it at ISKO UK Conference 2017 in London.


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