A British Passport is an official travel document issued by the government of the United Kingdom. It certifies the identity and nationality of the holder, allowing them to travel internationally. The passport contains personal information, including the holder's name, date of birth, and photograph, as well as details about the issuing authority. British passports are typically valid for ten years for adults and five years for children. They come in a dark blue cover and feature various security features to prevent forgery. Holders of a British passport can enjoy visa-free or visa-on-arrival access to many countries around the world.