Podcasts are incredibly popular and they have proven to be a great way to learn. They allow you to listen passively while learning new things. Some podcasts are designed around specific topics and the distinction between these three types is important because each one provides different benefits.
General education podcasts focus on broad topics like being healthy or diplomatic crises in foreign regions. If you're just getting started learning about a topic, this kind of podcast can get you excited about the subject, provide an introduction and motivation for further research, or offer some greater context for what's been written before it so that it can be understood more easily.