 ISKO officially recognizes regional chapters in Brazil, Canada and the United States, China, France, Germany (including Austria and Switzerland), India, Italy, Maghreb (including Tunisia + Algeria + Morocco), Poland, Singapore, Spain (including Portugal), the United Kingdom, and West Africa.ISKO cooperates with international and national organizations such as UNESCO, the European Commission, the International Organization for Standardization, the International Federation of Library Associations and Institutions, the Association for Information Science and Technology, the Networked Knowledge Organization Systems/Services, and the International Information Centre for Terminology.Dahlberg, Ingetraut (2010) International Society for Knowledge Organization (ISKO), "Encyclopedia of Library and Information Sciences, Third Edition", 1