A Valentine's Day card is a special greeting card exchanged on February 14th to express love and affection. These cards often feature romantic designs, heartfelt messages, and symbols like hearts and roses. People give them to partners, friends, and family to celebrate their relationships. Many Valentine's Day cards are available in stores, but some individuals choose to create handmade versions for a personal touch. The tradition of sending cards on this day has evolved over time, with the first commercial cards appearing in the 19th century. Today, they remain a popular way to convey feelings of love and appreciation.