ID cards are official documents that help identify a person. They usually contain important information such as the person's name, photo, date of birth, and sometimes an identification number. Many people use ID cards for various purposes, like proving their age, accessing services, or traveling. Common types of ID cards include driver's licenses, national identification cards, and student IDs. These cards are essential for security and verification. For example, when entering a government building or boarding a plane, showing an ID card is often required. They help ensure that the right person is accessing certain areas or services, making them an important part of everyday life.