WP9 aims to provide training and skills development for the European Open Science Cloud (EOSC) through three main tasks. The first task coordinates EOSC training activities and develops a cross-domain training alignment. The second task delivers customized training programs for various EOSC stakeholders. The third task develops the EOSC Knowledge Hub, including an online training catalogue and learning platform. The overall goals are to train stakeholders to use EOSC, support providers in joining EOSC, and consolidate a community of EOSC trainers.