Passport holders from Western Europe countries as well from South America (Mercosur Community) will not need a visa to enter Brazil. For some nationalities a visa must be applied for before arrival at the brazilian embassy or consulate. Useful information is also available here.
The Conference Secretary can aid you with this information and provide qualified delegates with letters confirming their intent to attend the School.
Foreign participants will arrive at São Paulo Guarulhos International Airport (GRU), located less than 200 km from Campinas city.
View this video on YouTube: Sao Paulo