The German national committee of the Corpus Vitrearum invites submissions of proposals for technical papers and posters for the twelfth international meeting of the Forum. The overall theme of the meeting is ‘Visibility’. Abstracts of 200-300 words, which will be reviewed by a scientific committee, are invited. Notification of admission to the Forum will circulated by December 31, 2023. Proposals may be submitted in English, French or German to: nationalkomitee@corpusvitrearum.de