Your passport is an important document. You will certainly need it to identify yourself on entering or leaving most countries. You may also need it for other purposes when overseas, such as checking into hotels and camping sites, buying airline tickets and cashing traveller's cheques.
A passport is a document, issued by a national government, which certifies the identity and nationality of its holder for the purpose of international travel. The elements of identity contained in all standardised passports include information about the holder, including name, date of birth, gender and place of birth.
A passport does not of itself entitle the passport holder entry into another country. It does, however, normally entitle the passport holder to return to the country that issued the passport. Rights to consular protection arise from international treaties, whilst the bearer's right to return to the passport's country of issue arises is dependent on the laws of the issuing country. A passport does not represent the right or the place of residence of the passport holder in the country that issued the passport.