A photo book is a collection of photographs compiled into a bound format, often resembling a traditional book. These books can be created digitally using various online services, allowing users to customize layouts, add text, and choose from different themes. They are popular for preserving memories from events like weddings, vacations, or family gatherings. Photo books serve as a tangible way to showcase and share personal experiences. They can be printed in various sizes and styles, making them suitable for gifts or personal keepsakes. Many people enjoy creating photo books to celebrate milestones or document their lives over time.