Loading spinners- every front-end that connects to the internet has them. At one level, they're very simple and easy to not think too much about. When something's loading, show a spinner, and then hide it when the loading's done. But there's so much beyond the loading/ not-loading binary: first load, subsequent loads, load-on-manual-refresh, load-on-scroll, refresh everything vs. check for new items, acknowledging that the load is taking too long, and more. It can be a bit overwhelming once you (over)think the loading spinner, but sweating these details can make a big difference for your users (who will see your spinners a lot!). Let's talk about the great variety of loading states, real life good and not-so-good examples of addressing them, and recipes to make a nuanced approach to spinners manageable. We'll walk through examples in React/ React Native, but in service of concepts that can be applied anywhere.