Everything is now on the internet, just simply use the search button on Google Chrome and you will have the answer to those crypto trading courses that we need. There are a lot of crypto trading courses too that can be found if you want to research them.
But remember they are just a tool in trading, you still need the luck to guess the market price, trading is very crucial and not just easy to make money.
Yes basically trading has numerous book that someone can read and get tangible concept of understanding of cryptocurrency, i know vividly that before i learnt trading manually i first read some articles of trading online before mastered some of the relevant procedures offline the knowledge was first establish via internet video..if someone understand the protocols and take the precautions involves in cryptocurrency trading it will be as simple as easier to make money through trading.
if we feel we are enough to learn from google, I don't think we need an offline learning system. but with a guide in a lesson, I think it will be more effective because what is conveyed will be sequentially in learning, especially the people who teach us are experienced in trading, so it will be easier for us to catch the learning material, until finally practicing independently which becomes our starting point trading success