I'm a Russian citizen and have been invited to the interview to United States and plan to go there on a two-day trip.
The question is - does anybody know which exactly type of visa I should apply for.

The list of visa categories [is big][1] and confuses me a little.

I've tried to call them (nobody takes up the phone), I guess I should visit them, but nevertheless it would be nice to know this beforehand.


  [1]: http://www.ustraveldocs.com/ru/ru-niv-visatypeinfo.asp#overview