If you were to start today, how would start learning Cloud?

A friend that is trying to breakthrough into the Cloud space asked me what’s the best way to start learning about it. So, naturally, I started to look back on my first steps in this space and realized that A LOT changed since I first started over 5 years ago! Azure wasn’t a big contender and AWS had only 30~40 services (compared to the over 200 nowadays!)

So, if you had to start over, how would start learning cloud?