First developed in the 1960s as Midori’s original diary paper, the MD paper used in these notebooks has continuously gone through quality improvement until today. The paper is adopted for writability and is fountain pen friendly as well as preventing smearing or bleeding through easily.    Keeping the writer’s comfort in mind, the Midori MD Notebooks allow you to write down ideas freely as they come to you, or even using a double page as a canvas for your thoughts. Read Less