A passport book number is a unique number assigned to each passport holder. It consists of nine digits, which are divided ...

Passports cards and book are accompanied by a long list of travel-compliant documents that can help travelers ease their minds on or after May 7.

so check with the embassy in your destination before you book your ticket. Some countries also require a specific number of blank pages remaining in your passport, so that's another thing to check ...

If you need to renew your passport you should give yourself plenty of time before your next trip. But here's everything you need to know.