Black pen in certain Persian culture refers to a type of painting in which only black pen, charcoal or pencil is made and has no coloring. The history of using black pen painting in Iranian painting is very long and with the beginning of painting in the seventh century AH, painting techniques were followed as a technique. But black pen is specifically used to use charcoal or charcoal pencil in drawing, especially face design. In ancient times, a combination of charcoal with calcium carbonate powder called marble dust, also known as ‘charcoal’, was used to draw on canvas. This method of design was popular among Kamal al-Mulk’s students and is still very popular today. Because charcoal is thicker, blacker, and smoother than pencil, design is a unique experience, and it can create super-realistic and emotional designs. On the other hand, charcoal can be used in the form of a pencil, in which case it is an effective tool for designing, shading, hatching and creating large size paintings.