Scientific progress relies on open FAIR data. Describing datasets with rich metadata and appropriate standards, and submitting these to public archives, is crucial in linking different data types in an open, accessible, and sustainable manner.This webinar will introduce two public archives: BioSamples and BioImage Archive. After a brief overview, we will  provide information on how you can use these repositories to make your data open and FAIR, with a particular focus on complex multi-modal datasets.