I've read books, I've watched videos, I've done parking lot classes. I think I've learned the most from riding with other people who are better riders than I am, and also willing to tell me when they see room for improvement. I've also learned that there are riders out there with hundreds of thousands of miles under their belt who never actually learned to ride. So don't use "mileage" as your sole gauge of a riders proficiency. And skin grafts suck, protect yourself at all times.
There are many ways/modes to learn by. The critical thing (not just in this hobby) is keep learning.
Much wisdom can be called upon, to
un-learn certain habits too....... applies to many things in life; it just happens the consequences here are more immediate/serious than with many other activities....
I'm an ATGATT guy. I found it frustrating when I got back on two-wheels, to find the gear that I wanted. Canada, short riding season, small market (compared to parts of USA); It's a challenge to find good quality gear that fits here.
It's important enough to post here, and I'll also post in the other gear thread I started...... I eventually pieced together all the gear I wanted, but it took significant effort.
What I wish I had discovered earlier was........ BMW. I ended up buying my back-protector from BMW. I wasn't that much more money than the generic off-shore stuff I could find, for their CE approved one.
I ride a 500cc UJM bike, and only reluctantly stopped by the BMW dealer. They have an excellent line of gear, and it turns out tons of non-BMW riders come in for all sorts of gear. Can't remember their trade-name for it, but they have an amazing line of armour - basically a conformable gell - high performance, yet extremely comfortable. I was pleasantly surprised, and really pleased, by how I was treated as a non-BMW customer.
Rgds, D.