I need a "Twitter for Dummies" lesson

I don’t want to make this political, which is why I put this question on this section of the board. I’m a twitter idiot, I have no idea how it works. My question is do I have to follow somebody’s twitter feed to read their twitter feed, or is it like facebook, where that is not necessary?

Hope this is helpful.

I made a twitter account 4 or so years ago, made three posts and then deleted the account. Just not my thing.

That said, it’s been a remarkably useful platform to get an inside glimpse into Donald’s mind.