In this article, we explored the U.S. Passport Book, the U.S. Passport Card, and the differences between the two. You should now have a better understanding of the differences between the U.S. Passport Card and U.S. Passport Book.
Finally, make sure to obtain a U.S. passport when traveling internationally. You should likely purchase the U.S. Passport Book, unless you plan to travel to Canada, Mexico, Bermuda, or any of the Caribbean nations only by land or sea.