A First Day Cover (FDC) is a special envelope that features a newly issued stamp, canceled on its first day of release. Collectors often seek these covers because they commemorate the stamp's debut and can include unique designs or themes. The envelope typically has a postmark from the city where the stamp was first issued, making it a cherished item for philatelists, or stamp collectors. FDCs can be created for various occasions, such as the release of a commemorative stamp honoring a historical event or a celebrity. Many collectors enjoy showcasing their FDCs in albums, as they represent a blend of art, history, and postal tradition.