If you're applying for documents to travel outside of the United States of America, you may have noticed that you have two options: You can apply for either a passport book or a passport card.

After I lost my passport (embarrassing, given my job as a travel editor), I’ve learned lots about travel IDs—including the differences between a passport book vs. card—in my quest to replace ...

Now that the Real ID deadline has come and passed, you might be wondering about the difference between a passport book vs. card, and whether they meet the Real ID requirements for domestic or ...