Is bookmark a small production of cultural heritage?

Count. A bookmark is a small piece sandwiched in a book to record the reading progress and used to write the title of the book. Usually posted on the upper left corner of the cover of ancient books, sometimes there are papers, which ask the reporter's name and the place he read, and are small pieces sandwiched in the book to record the reading progress. With the development of the Internet age, e-books that record reading progress and experience have been derived, which are considered as small productions of cultural heritage.