[Lol if by that you mean how to confiscate alcohol and teach someone that Nazi jokes aren't funny, then sure.]

He's an inventor from a world not too different from ours, [In that they have Captain America and Stark Industries because fu Fox idwiw.] and created a suit of armor for himself so he could fly around protecting innocent people and generally doing good where he could. He calls himself Iron Man, so I guess the codenames caught on.