Writing utensils are tools used to create written works. Common writing utensils include PENS, pencils, markers, and highlighters. PENS are the most popular writing utensil, consisting of a barrel containing ink that is dispensed onto paper when the tip is pressed against it. Pencils are also widely used, consisting of a graphite core encased in wood. Markers and highlighters are also popular writing utensils, with markers being used to create bolder lines and highlighters being used to emphasize text.