The phone number of the front desk of the PUC-Rio’s IAG Business School is +55 21 2138 9200 or +55 21 2138-9201. (Note that English may not be spoken by the attendant, but he/she will redirect you to an English-speaking person of the staff)
The building where the conference will be held is the IAG Business School, which is in front of the campus church.
There are two entrances to the PUC-Rio campus. The official one is on “Marques de Sao Vicente” street, number 225 — just for pedestrians. The other one is on “Padre Leonel Franca” street — and cars are allowed in there.
If you are arriving by taxi, you can ask the driver to go into the campus by taking the entrance on “Padre Leonel Franca” street. Or else, it is just a 5-minute walk from either of the two entrances.