Invitation cards are printed cards used to invite people to events such as weddings, birthday parties, or corporate gatherings. They typically include essential details like the event's date, time, location, and RSVP information. The design of the card can vary widely, reflecting the theme or formality of the occasion. These cards can be made from various materials, including paper and cardstock, and can feature colorful graphics, elegant fonts, or personal photographs. Many people choose to send digital invitations as an alternative, which can be more convenient and eco-friendly.