To easily organize and store the magazine in a bookshelf, to easily organize and manage one's own contents of a magazine by writing a table of contents and a memorandum, and to eliminate the difficulty in opening a page and labor for laying and removing a cover in using a conventional magazine cover.

This invention relates to an object having a line (2) capable of writing one's own table of contents and the memorandum of the magazine in cardboard (1) and (3), and solves the problem by removing and using this invention from the magazine when browsing the magazine, and inserting and using this invention into the magazine when storing the magazine.