Sketching is the most inexpensive art medium. Sketches can be made in any drawing medium. The term is most often applied to graphic work executed in a dry medium such as silverpoint, graphite, pencil, charcoal, or pastel. Freehand drawing is the ability to draw something without depending on instruments or something else to draw. These sketches guide the drawing process with only Dr.Wael's hand, and it depends on his observational skills. For Dr.Aboneama, pencil drawing is the skill that introduced him to the art world. These pencil drawing techniques cover everything from the basics of mark-making to advanced processes to push his imagination forward.

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