A bookmark is a tool used to mark a specific location within a book, document, or digital resource, enabling users to easily return to that location at a later time. Bookmarks can be physical objects, such as ribbons, tabs, or slips of paper, inserted between the pages of a book, or digital features incorporated into software applications, web browsers, or document viewers. They serve as convenient navigational aids, allowing readers to quickly resume reading or reference a particular section without having to search through the entire content. Bookmarks are commonly used in both print and digital formats, providing users with efficient ways to organize, remember, and revisit important or frequently accessed information.