Short-stay visas called "Schengen visa" and allows the holder to travel freely in the Schengen countries of the region and accommodation for a maximum of 90 days during the period of 6 months.
This can be issued visas to enter once or several times.
This type of visa is issued for a tourist trips or business trips or family visits; it also allows the holder of them to come to France for training for a short period, or for training or practice work paid, provided that they obtain a temporary work permit (Artists on tour, athletes in the games , seconded staff within the framework of loan services etc ...).
You may also ask that the possession of these Altohrh just crossing French territory.
Crossing represents foreign airports without the French out of the area called "international" special case.
Because foreign does not enter French territory is not subject to a visa, except for the exception. This is because some foreigners are subject to the visa in order to cross the French airports.