An ID card is an official document that verifies a person's identity. It typically includes personal information such as the individual's name, photograph, date of birth, and a unique identification number. ID cards are commonly issued by government agencies, educational institutions, or employers to help confirm a person's identity in various situations. These cards are used for a variety of purposes, including accessing secure areas, verifying age, and proving eligibility for services. Many countries have national identity cards, while organizations may issue employee ID cards or student ID cards to their members for identification and security purposes.