What Is a Passport Book Number? A passport book number is a unique number assigned to each passport holder. It consists of ...

you'll need to use a passport book no matter what. There's also a price difference — passport cards are $65 for first-time passport holders, compared to the $145 fee of a passport book.

It has a book-like shape and it is sized to hold ... Cards slot into the holders and there's also a holder for the passport, but it would be nice to have an extra layer of security keeping ...