A wedding guest book is a special book used during a wedding ceremony or reception for guests to sign their names and leave messages for the couple. It serves as a keepsake that captures the memories and well-wishes from friends and family who attended the event. Traditionally, the guest book is placed at the entrance of the venue, allowing guests to sign it as they arrive. Some couples choose creative alternatives, such as photo guest books or digital guest books, which can include photos or video messages, adding a personal touch to the memories of their special day.