This is the first edition of the CLaDA-BG conference. It was held in a hybrid mode: face-to-face and online via Zoom. 63 participants from 11 countries attended the event. The topics presented at the conference were in the following fields: language technologies for sentiment analysis, knowledge graphs and their trust-worthiness, knowledge modeling and elicitation for digital SS&H, digital libraries, archives and museums. The Proceedings of refereed full papers will be published as a special volume of Springer book series.