Coursera is one of the popular online course and is currently conducting free course for Crypto Currency geeks and the course has been already more than 1 million enrolls.
How about you? Would you like to enroll also with the same course?
If possible, I will definitely register. I think the amount of knowledge I know about crypto is very small compared to what it is and everyone knows. And I think that's also what new entrants to the btc investment need and they have to do ... I think joining the course will have more benefits for your investment.