1.This reading list is not only a bookmark,but also a management assistant for your reading list.Whether it's books you're reading or books you're planning to read,it can help you easily track and manage them. 2.Bookmark trackers are portable and allow you to track the books you are reading in real-time.They are suitable for most books and are as convenient as reading tag cards. 3.Bookmarks are made of high-quality paper with a smooth surface, easy to write, and durable,. The library card book tracker can be used for a long time to track your reading progress and plan your reading time. 4.The library card can help you record the title or chapter star rating of a book and you can also use it as a page marker.You can give bookmarks as gifts to friends,readers,students and bookworms. 5.The size of the bookmark tracker is 3x8 inch.After purchasing,you will receive 50 exquisite cards.