Thanks for sharing the link. I think that the article doesn't tell many new things, but it makes sense and might be very useful for novices. It's also sweet that it's free, since I came by various trading online courses but all of them cost money. It would be nice there weren't only articles, but some exercises, tests and videos as well, but it's still better than nothing. At the same time, I think they should've made a disclaimer about many people losing their money when trying to trade, so it's not like when you obtain other professions. The also didn't provide the basic rule of NEVER trading more than one affords to lose.
Well, why not try Youtube as one of your main resources in cryptocurrrency trading if you are looking for edcuational video lessons. I mean there are lots of channel there for you to find, it will not also cost you too much money.
Those learnings you can get in paid online courses can also be found throughout the internet. Engaging in an actual trading will help you a lot.