A passport is an official government document that proves who you are and what country you're a citizen of. When you travel to another country, border officials check your passport to verify your identity and decide whether to let you in. Think of it as your ticket to cross international borders: without one, you can't legally enter most foreign countries.

A passport includes your photograph, full name, birth date, and a unique number that identifies your specific document. Many countries issue small booklet-style passports with dozens of pages. As you travel, officials stamp or scan pages to create a record of where you've been.

Getting your first passport feels exciting because it represents the possibility of adventure and discovery. It's your key to experiencing different cultures, languages, and places. Some people collect passport stamps like badges of honor, filling page after page with marks from countries around the world. Adults usually renew their passports every ten years, while children's passports expire sooner since their appearance changes as they grow.