A SIGN / book or note book

In our production, we have rendered the knife-pattern similar to the bookmark posit at the bottom corner of inner page so that one can follow the dotted line along the knife-pattern when using and re-fold it after it is torn, retaining the labeling feature of bookmark. As such, the book has kept the universality of bookmark in itself, free from the habit that one has to carries posit.
As for the dotted line in knife-pattern, the unconscious performance of the users to tear it open for use should spare the them from re-learning and re-educating them with the products, such being the feature and value of the design.