How does vertexes work?
I'd like newbie friendly answers and in detail :)

PS: I've already tried to google it but i couldn't find any good answers.
So no "omgz google is your friendz n00b" answers please. :)
On the basis that's impossible to extrapolate your experience from such a terse post.

For one thing, 3D graphics is heavy on the maths, so some decent math texts wouldn't go amiss either. It's all very well that the APIs handle a lot of this stuff, but there's a lot of theory as well which a few tutorials and google just won't solve.