The OpenAIRE webinar discusses the open access policies for publications under Horizon 2020, emphasizing the requirement to deposit published versions or final accepted manuscripts in repositories to ensure easy access. It covers the advantages and costs associated with various types of journals, including open access and subscription-based, and outlines the reimbursement process for article processing charges (APCs). Additionally, it advises on how to choose repositories for deposit and emphasizes the importance of providing immediate or embargoed access to research outputs.