A Christmas card is a greeting card specifically designed to celebrate the holiday of Christmas. These cards often feature festive images, such as Christmas trees, snowflakes, or Santa Claus, and include warm messages wishing recipients joy and happiness during the holiday season. People typically send Christmas cards to family, friends, and colleagues as a way to express goodwill and maintain connections. Many cards also include personal notes, and some families even include family photos to share updates on their lives. Sending and receiving Christmas cards is a cherished tradition in many cultures around the world.