For questions about the Seaman's Book.
The 'Seaman's Book' provides a travel document that can be used instead of a passport in some case like when joining or leaving a vessel and the book itself must contain all of the information that a passport would normally contain. The Seaman's Book can be used in some situations where the owner would normally need a visa, when the seaman can show he is joining or leaving a vessel the visa requirement is often waved.
This will work in every country that is a signatory to the International Labour Organization (ILO) Convention 108 (and in limited circumstances ILO No. 185).
