The Commission Vanishing Languages and Cultural Heritage (VLACH) aims to contribute to the academic knowledge of the world’s linguistic diversity by investigating nondocumented and lesser-documented languages and varieties. In principle, the Commission is concerned with global phenomena of language loss and is therefore potentially interested in all endangered varieties irrespective of their geography. VLACH is committed to develop strategies of language maintenance and to nurture cultural heritage in close collaboration with the diverse communities involved in the VLACH projects. In terms of contents, the Commission examines subject areas such as inter- and innerlinguistic variation, language shift, language transfer and all phenomena concerning vanishing or endangered linguistic varieties, cultures and identities.