Hello all, Following the past events dedicated to data quality and data reuse, the Wikidata team wanted to host a new gathering dedicated to data modelling. The Data Modelling Days <https://www.wikidata.org/wiki/Wikidata:Events/Data_Modelling_Days_2023> will take place online over three days and will host a variety of discussions, workshops and practical sessions on the topics of Wikidata ontologies, EntitySchemas, modelling issues and various other challenges. The event is open to everyone, regardless of your experience with modelling data on Wikidata. We particularly encourage people who are working on specific topics to join the event and present their modelling challenges. If you know people or groups who are already discussing modelling issues on Wikidata, or would have something interesting to contribute, please share this message with them! You can find more information on the dedicated page <https://www.wikidata.org/wiki/Wikidata:Events/Data_Modelling_Days_2023>, sign up <https://www.wikidata.org/wiki/Wikidata:Events/Data_Modelling_Days_2023/Participants> and let us know what you are interested in, you can already propose discussions and workshops on the talk page <https://www.wikidata.org/wiki/Wikidata_talk:Events/Data_Modelling_Days_2023> until November 19th. If you cannot attend, don’t worry, most sessions will be recorded, notes will be taken and slides will be shared. We are looking forward to seeing you and learning more about your modelling challenges during the Data Modelling Days! If you have any questions, feel free to reach out to me. Best, -- Léa Lacroix Community Engagement & Events Consultant Contractor for Wikimedia Deutschland e.V.