An anniversary book is a special keepsake that celebrates significant milestones in a relationship, such as weddings or partnerships. It typically includes photos, messages, and memories shared over the years, allowing couples to reflect on their journey together. These books can be personalized with themes, colors, and designs that resonate with the couple's style. Often gifted on anniversaries, they serve as a heartfelt reminder of love and commitment, making them a cherished item for years to come. Many couples also use anniversary books to document future anniversaries, creating a continuous record of their relationship.