Always been an introvert, but it took me until my mid 20s to understand that most others aren't, and that I wasn't alone.
Quiet is a very nice book. A friend recommended it to me a couple of years ago, and I think it outlines what we introverts go through very well. It helped me understand extroverts a little better, too.
I identified with it most because supervisors in every job I've ever had try to get me to be a "leader," and don't understand why I have no interest in it. The main benefit I get from doing my best as a teacher is that people pretty much leave me alone. It's almost like not having supervisors at all, which is glorious. The only other way I could have this kind of autonomy is by starting my own business, and I'm just not built for that.
Loved that the author was a trial lawyer who had to learn how to get in front of people despite how terrifying it is for introverts.