Asked if I could describe my business, that silly fluff is the best I could come up with. Shoot, we read scripts. Nothing too mysterious, not much really learned about it... you use what nature gave you - a voice. The only thing you must acquire beyond that is interpretive skills. That's... pretty much it. There is a small measure of "magic" that enters the equation, but that part is intangible.
I hesitate to "pull back the curtain" by putting any of this in writing, (like I care?) but as this video illustrates, some of the most respected voice over artists in the world are just... regular dudes.
When I read script in the studio, I get a little animated. Arm gestures, facial expressions... it would be pretty embarrassing for you to see it. You will never, ever find a video of that anywhere.