How Travel Visas Work
The gist
A travel visa is an official permission granted by a country that allows a person to enter, stay, or leave for a specific purpose and time, typically shown as a stamp or sticker in a passport.
Explain like I'm 5
It's like getting a special ticket from a country that says you can come visit for a little while, kind of like a permission slip for a school trip.
Big picture
Visas help countries control who enters their borders, ensuring security and managing immigration, while allowing travelers to visit for tourism, work, or study.