I'm not a big fan of "read these seven steps and you'll be an expert at doing x" articles because reading an article in one's armchair is a bit different than standing or sitting at the helm of one's boat with an adverse wind and not much space at the dock and so on.
We learned to operate a single engine cruising boat first simply because that's what we chartered. It had a bow thruster which came in handy on several occasions, but for the most part we found maneuvering the boat to be pretty straightforward. Granted, we had a lot of apples-and-oranges single engine experience with canal boats in the UK, so things like propwalk and hull pivot and so on were familiar forces to us.
When we decided to buy a cruising boat of our own, our list of requirements did not include the number of engines (it does now). As it happened, the boat that best met our needs and budget is a twin.
Neither of us had ever run a twin engine boat before, and we were both very apprehensive. To the point of asking a good friend-- the founder of Kenmore Air and who was an avid and expert boater in his steel-hulled deFever--- to take us out on Lake Washington and give us some twin-engine lessons. He agreed but pointed out that in his opinion the best way for us to learn to operate and maneuver our twin was to just go do it.
As we could never get our schedules to sync, in the end that's what we did. And we proved our friend's advice to be correct. Logic, common sense, a healthy dose of caution, and an equally healthy dose of willingness to try, and a handy tip given to us by the selling broker during the sea trial of the boat we bought proved to be all my wife and I needed to "figure out" twin engine operation and maneuvering on our own.
We didn't read any articles or books or watch any YouTube videos (made easier as YouTube hadn't been invented yet). We just got on the boat, started it up, and started learning how to operate it.
Learning is a never-ending process, but we've learned a lot since taking our boat out for the first time.
Reading is a great way to learn theory. My first flight instructor strongly suggested that I read a book called "Stick and Rudder" before my first lesson. I did, and while I had no idea what things were going to sound, feel, and look like when I flew my first flight, I knew exactly why things were going to happen: why a plane flies (hint---it's nothing to do with Mr. Bernouli), why it climbs, descends, turns, stalls, and so on.
So I'm not disparaging reading about various aspects of boating. But this "read this article and you'll be an immediate expert" implication I see so often in various magazines is quite misleading, I think.