I've just posted a new video over on our YouTube Channel. In our Training we often get questions about the structure of Power BI, how do Dataflows and Datasets fit together, when do I need a Gateway, and how does automatic refresh work with these structures? The answer is that it's complicated. Power BI is growing and now there are many ways to connect, store and report on data. So I thought the best way to explain this was with a video to show diagrammatically what connect with what. Let me know your views in the comments on YouTube or here. We've got a number of other video's in production, let me know if there is any topic you'd like us to address.