IEO 30 is an association based in Gard, France, dedicated to promoting Occitan language and culture. Working alongside M.A.R.P.OC, it supports cultural activities, publications, events and initiatives that help keep Occitan heritage visible and accessible. Its work includes the Universitat Occitana d’Estiu, an annual programme of talks, cultural gatherings and performances, as well as activities for young people, including a video competition for school classes. The association also shares news and resources about Occitan culture, language, literature and regional life, and supports events organised by other groups.

Through its publishing activities, including Éditions MARPOC and Éditions IEO, the organisation offers books and other works in Occitan across genres such as prose, poetry, theatre, youth literature, educational materials, studies, dictionaries, journals and conference proceedings. Its website features titles by regional authors, music and films, and information about books for sale. IEO 30 also provides a cultural agenda for Gard, coverage of past events, political and linguistic updates, and information about Occitan coordination and local cultural initiatives.