your question is not clear because you keep repeating the term "learning" but you never mention WHAT!
learning in this context can mean a ton of things. from the basics that someone needs to understand what to do in this world to the advanced topics such as cryptography and coding a blockchain technology related application. and for each of them there are very different resources that one can use. for example for basic stuff as it was mentioned, coindesk articles and Andreas Antonopoulos are the best in my opinion. a little more advanced and you'll need to look at bitcoin wiki, developers' documentation and read those. as for code you'll need to look at some source code of your favorite projects and try learning that way.
then we have the topic of trading which nearly has no useful source that you can learn and learn from. most of them (like the websites, youtube videos,...) are made by newbie people who have no idea what they are doing in this market.
Well I never mentioned specifically learning what, because as I mentioned I'm not asking for myself for resources to learn. I have my own information and resources, I'm asking in the context of your learning. Whatever your learning curve was, and what specific resource such as a article/video/podcast episode, would you define as a golden gem for one of the most impactful pieces of information that you had during your learning experience. And again, the phrase "learning experience" applies to you individually and whatever it may mean to you. If one of the most important pieces of info to you in your learning experience had to do with coding than what was it, or if it was in relation to applications built on blockchains, or whatever context it may have been for you what would you say is a single most valuable piece of info that you've come across. The point is sort of to gather a list of highly valuable resources pertaining to all different areas of crypto, some that may be new to me, that can be shared with other users especially beginners.